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+
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+
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+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
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+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
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+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+++ /dev/null
-glue.jed: glue.pld
-
-%.jed: %.pld
- galasm $<
-
-.PHONY: program
-program: glue.jed
- minipro -p ATF16V8B -c config -w $<
-Z80 micro 2
-===========
-This is a simple Z80 computer:
+Z80 computer v2
+===============
+
+About
+-----
+This is a simple Z80 computer. Hopefully I'll find a better name for it.
- 3.6864 MHz clock (see mc68681 DUART)
- 64kb RAM (32kb accessible at any single time)
- 32kb ROM
- Dual serial UART (mc68681) with CTS/RTS flow control (1x RS232, 1x TTL-level)
- Glue logic implemented in a ATF16V8 GAL (glue.pld)
+
+Directory structure:
+ - `hw/`: hardware design files, schematic, and GAL equations
+ - `rom/`: source code of the ROM monitor program
+ - `emu/`: system emulator
+
+License
+-------
+Copyright (C) 2020 John Tsiombikas <nuclear@member.fsf.org>
+
+Hardware designs are open hardware, released under the terms of the Creative
+Commons Attribution Share-Alike license (CC BY-SA). See `LICENSE.hw` for
+details.
+
+All software and firmware in this project is free software, released under the
+terms of the GNU General Public License v3, or at your option any later version
+published by the Free Software Foundation. See `LICENSE.sw` for details.
+
+In short you are free to use, reproduce, modify, and/or redistribute any part of
+this project, provided you also extend the same freedom, under the same terms,
+to anyone receiving this, or any derivative work based on this, from you.
--- /dev/null
+src = $(wildcard src/*.c)
+obj = $(src:.c=.o)
+dep = $(obj:.o=.d)
+bin = z80v2emu
+
+CFLAGS = -pedantic -Wall -g -MMD
+
+$(bin): $(obj)
+ $(CC) -o $@ $(obj) $(LDFLAGS)
+
+-include $(dep)
+
+.PHONY: clean
+clean:
+ rm -f $(obj) $(bin)
--- /dev/null
+#include <stdint.h>
+#include "cpu.h"
+#include "emu.h"
+
+enum {
+ FLAGS_C = 0x01,
+ FLAGS_N = 0x02,
+ FLAGS_PV = 0x04,
+ FLAGS_H = 0x10,
+ FLAGS_Z = 0x40,
+ FLAGS_S = 0x80
+};
+
+enum {
+ R_B = 0,
+ R_C = 1,
+ R_D = 2,
+ R_E = 3,
+ R_H = 4,
+ R_L = 5,
+ R_INVAL = 6,
+ R_A = 7
+};
+
+#define RRSET2 4
+enum {
+ RR_BC = 0,
+ RR_DE = 1,
+ RR_HL = 2,
+ RR_SP = 3,
+
+ RR2_BC = RRSET2 | RR_BC,
+ RR2_DE = RRSET2 | RR_DE,
+ RR2_HL = RRSET2 | RR_HL,
+ RR2_AF = RRSET2 | RR_SP
+};
+
+enum {
+ PREFIX_ED = 1,
+ PREFIX_CB = 2,
+ PREFIX_DD = 4,
+ PREFIX_FD = 8
+};
+
+enum {
+ ALUOP_ADD = 0,
+ ALUOP_ADC = 1,
+ ALUOP_SUB = 2,
+ ALUOP_SBC = 3,
+ ALUOP_AND = 4,
+ ALUOP_XOR = 5,
+ ALUOP_OR = 6,
+ ALUOP_CP = 7
+};
+
+enum {
+ CC_NZ = 0,
+ CC_Z = 1,
+ CC_NC = 2,
+ CC_C = 3,
+ CC_PO = 4,
+ CC_PE = 5,
+ CC_P = 6,
+ CC_M = 7
+};
+
+struct regs8 {
+ uint8_t a, f, b, c, d, e, h, l;
+};
+struct regs16 {
+ uint16_t af, bc, de, hl;
+};
+
+union genregs {
+ struct regs8 r;
+ struct regs16 rr;
+};
+
+struct registers {
+ union genregs g, shadow; /* general purpose and shadow registers */
+ uint8_t i, r;
+ uint16_t ix, iy, sp, pc;
+ uint8_t iff, imode;
+};
+
+static void runop_main(uint8_t op);
+static void runop_ed(uint8_t op);
+static void runop_cb(uint8_t op);
+static void runop_dd(uint8_t op);
+static void runop_fd(uint8_t op);
+static void runop_ddcb(uint8_t op);
+static void runop_fdcb(uint8_t op);
+
+static void op_load_reg8_reg8(int rdest, int rsrc);
+static void op_load_reg8_imm8(int rdest, uint8_t imm);
+static void op_load_reg8_mem(int rdest, uint16_t addr);
+static void op_store_mem_reg8(uint16_t addr, int rsrc);
+static void op_store_mem_imm8(uint16_t addr, uint8_t imm);
+static void op_store_mem_reg16(uint16_t addr, int rsrc);
+static void op_load_reg16_imm16(int rdest, uint16_t imm);
+static void op_load_reg16_reg16(int rdest, int rsrc);
+static void op_exch_mem_reg16(uint16_t addr, int rr);
+static void op_alu_reg8(int op, int r);
+static void op_alu_imm8(int op, uint8_t imm);
+static void op_incdec_reg8(int r, int adj);
+static void op_incdec_reg16(int r, int adj);
+static void op_incdec_mem(uint16_t addr, int adj);
+static void op_add_reg16_reg16(int rdest, int rsrc);
+static void op_rl_reg8(int r, int width);
+static void op_rr_reg8(int r, int width);
+static void op_push_reg16(int r);
+static void op_pop_reg16(int r);
+static void op_call(uint16_t addr);
+static void op_ret(void);
+static void op_input(int r, uint16_t addr);
+static void op_output(uint16_t addr, int r);
+
+static struct registers regs;
+static int halt;
+
+static void (*runop[16])(uint8_t op) = {
+ runop_main, /* 0000: no prefix */
+ runop_ed, /* 0001: ED prefix */
+ runop_cb, /* 0010: CB prefix */
+ 0, /* 0011: CBED invalid */
+ runop_dd, /* 0100: DD prefix */
+ 0, /* 0101: DDED invalid */
+ runop_ddcb, /* 0110: DDCB prefix */
+ 0, /* 0111: DDCBED invalid */
+ runop_fd, /* 1000: FD prefix */
+ 0, /* 1001: FDED invalid */
+ runop_fdcb, /* 1010: FDCB prefix */
+ 0, 0, 0, 0, 0 /* all the rest combinations are invalid */
+};
+
+static uint8_t *regptr8[8] = {
+ ®s.g.r.b, ®s.g.r.c,
+ ®s.g.r.d, ®s.g.r.e,
+ ®s.g.r.h, ®s.g.r.l,
+ 0, ®s.g.r.a
+};
+
+static uint16_t *regptr16[] = {
+ ®s.g.rr.bc,
+ ®s.g.rr.de,
+ ®s.g.rr.hl,
+ ®s.sp,
+
+ ®s.g.rr.bc,
+ ®s.g.rr.de,
+ ®s.g.rr.hl,
+ ®s.g.rr.af
+};
+
+void cpu_reset(void)
+{
+ regs.iff = 0;
+ regs.pc = 0;
+ regs.i = regs.r = 0;
+ regs.imode = 0;
+}
+
+static uint8_t fetch_byte(void)
+{
+ return emu_mem_read(regs.pc++);
+}
+
+static uint16_t fetch_imm16(void)
+{
+ uint16_t lsb = emu_mem_read(regs.pc++);
+ uint16_t msb = emu_mem_read(regs.pc++);
+ return lsb | (msb << 8);
+}
+
+static unsigned int prefix_bit(uint8_t op)
+{
+ switch(op) {
+ case 0xed: return PREFIX_ED;
+ case 0xcb: return PREFIX_CB;
+ case 0xdd: return PREFIX_DD;
+ case 0xfd: return PREFIX_FD;
+ default:
+ break;
+ }
+ return 0;
+}
+
+void cpu_step(void)
+{
+ unsigned int pbit, prefix = 0;
+ uint8_t op;
+
+ if(halt) return;
+
+ op = fetch_byte();
+ if((pbit = prefix_bit(op))) {
+ prefix = pbit;
+ op = fetch_byte();
+
+ /* only treat the next byte as another prefix if the previous was dd or fd */
+ if((pbit = prefix_bit(op)) && (prefix == 0xdd || prefix == 0xfd)) {
+ prefix |= pbit;
+ op = fetch_byte();
+ }
+ }
+
+ if(runop[prefix]) {
+ runop[prefix](op);
+ }
+}
+
+static int cond(int cc)
+{
+ switch(cc) {
+ case CC_NZ: return ~regs.g.r.f & FLAGS_Z;
+ case CC_Z: return regs.g.r.f & FLAGS_Z;
+ case CC_NC: return ~regs.g.r.f & FLAGS_C;
+ case CC_C: return regs.g.r.f & FLAGS_C;
+ case CC_PO: return ~regs.g.r.f & FLAGS_PV;
+ case CC_PE: return regs.g.r.f & FLAGS_PV;
+ case CC_P: return ~regs.g.r.f & FLAGS_S;
+ case CC_M: return regs.g.r.f & FLAGS_S;
+ default:
+ break;
+ }
+ return 0;
+}
+
+#define ALUOP(x) (((x) >> 3) & 7)
+#define DEST_R(x) (((x) >> 3) & 7)
+#define OPCOND(x) (((x) >> 3) & 7)
+#define SRC_R(x) ((x) & 7)
+#define OP_RR(x) (((x) >> 4) & 3)
+#define RST_ADDR(x) ((x) & 0x38)
+
+#define SWAP_RR(a, b) \
+ do { \
+ uint16_t tmp = a; \
+ a = b; \
+ b = tmp; \
+ } while(0)
+
+static void runop_main(uint8_t op)
+{
+ int b67 = op >> 6;
+ uint8_t disp;
+ uint16_t addr;
+
+ switch(op) {
+ /* 8-bit load group except ld r,r/ld r,imm/ld r,(hl)/ld (hl),r in default */
+ case 0x36:
+ op_store_mem_imm8(regs.g.rr.hl, fetch_byte());
+ break;
+ case 0x0a:
+ op_load_reg8_mem(R_A, regs.g.rr.bc);
+ break;
+ case 0x1a:
+ op_load_reg8_mem(R_A, regs.g.rr.de);
+ break;
+ case 0x3a:
+ op_load_reg8_mem(R_A, fetch_imm16());
+ break;
+ case 0x02:
+ op_store_mem_reg8(regs.g.rr.bc, R_A);
+ break;
+ case 0x12:
+ op_store_mem_reg8(regs.g.rr.de, R_A);
+ break;
+ case 0x32:
+ op_store_mem_reg8(fetch_imm16(), R_A);
+ break;
+
+ /* 16-bit load group */
+ case 0x01:
+ case 0x11:
+ case 0x21:
+ case 0x31:
+ op_load_reg16_imm16(OP_RR(op), fetch_imm16());
+ break;
+ case 0x2a:
+ op_load_reg16_imm16(RR_HL, fetch_imm16());
+ break;
+ case 0x22:
+ op_store_mem_reg16(fetch_imm16(), RR_HL);
+ break;
+ case 0xf9:
+ op_load_reg16_reg16(RR_SP, RR_HL);
+ break;
+ case 0xc5:
+ case 0xd5:
+ case 0xe0:
+ case 0xf5:
+ op_push_reg16(RRSET2 | OP_RR(op));
+ break;
+ case 0xc1:
+ case 0xd1:
+ case 0xe1:
+ case 0xf1:
+ op_pop_reg16(RRSET2 | OP_RR(op));
+ break;
+
+ /* exchange, block transfer, block search groups */
+ case 0xeb:
+ SWAP_RR(regs.g.rr.de, regs.g.rr.hl);
+ break;
+ case 0x08:
+ SWAP_RR(regs.g.rr.af, regs.shadow.rr.af);
+ break;
+ case 0xd9:
+ SWAP_RR(regs.g.rr.bc, regs.shadow.rr.bc);
+ SWAP_RR(regs.g.rr.de, regs.shadow.rr.de);
+ SWAP_RR(regs.g.rr.hl, regs.shadow.rr.hl);
+ break;
+ case 0xe3:
+ op_exch_mem_reg16(regs.sp, RR_HL);
+ break;
+
+ /* general purpose arithmetic and cpu control groups */
+ case 0x27:
+ break; /* TODO implement DAA */
+ case 0x2f: /* cpl a */
+ regs.g.r.a = ~regs.g.r.a;
+ regs.g.r.f |= FLAGS_H | FLAGS_N;
+ break;
+ case 0x3f: /* ccf */
+ regs.g.r.f ^= FLAGS_C;
+ break;
+ case 0x37: /* scf */
+ regs.g.r.f |= FLAGS_C;
+ case 0x00: /* nop */
+ break;
+ case 0x76: /* halt */
+ halt = 1;
+ break;
+ case 0xf3: /* di */
+ regs.iff = 0;
+ break;
+ case 0xfb: /* ei */
+ regs.iff = 1;
+ break;
+
+ /* 16-bit arithmetic group */
+ case 0x09:
+ case 0x19:
+ case 0x29:
+ case 0x39:
+ op_add_reg16_reg16(RR_HL, OP_RR(op));
+ break;
+ case 0x03:
+ case 0x13:
+ case 0x23:
+ case 0x33:
+ op_incdec_reg16(OP_RR(op), 1);
+ break;
+ case 0x0b:
+ case 0x1b:
+ case 0x2b:
+ case 0x3b:
+ op_incdec_reg16(OP_RR(op), -1);
+ break;
+
+ /* rotate and shift group */
+ case 0x07: /* rlca */
+ op_rl_reg8(R_A, 8);
+ break;
+ case 0x17: /* rla */
+ op_rl_reg8(R_A, 9);
+ break;
+ case 0x0f: /* rrca */
+ op_rr_reg8(R_A, 8);
+ break;
+ case 0x1f: /* rra */
+ op_rr_reg8(R_A, 9);
+ break;
+
+ /* jump group except jp cc, imm16 in default */
+ case 0xc3: /* jp imm16 */
+ regs.pc = fetch_imm16();
+ break;
+ case 0x18: /* jr imm8 */
+ regs.pc += fetch_byte();
+ break;
+ case 0x38: /* jr c, imm8 */
+ disp = fetch_byte();
+ if(cond(CC_C)) regs.pc += disp;
+ break;
+ case 0x30: /* jr nc, imm8 */
+ disp = fetch_byte();
+ if(cond(CC_NC)) regs.pc += disp;
+ break;
+ case 0x28: /* jr z, imm8 */
+ disp = fetch_byte();
+ if(cond(CC_Z)) regs.pc += disp;
+ break;
+ case 0x20: /* jr nz, imm8 */
+ disp = fetch_byte();
+ if(cond(CC_NZ)) regs.pc += disp;
+ break;
+ case 0xe9: /* jp (hl) */
+ regs.pc = regs.g.rr.hl;
+ break;
+ case 0x10: /* djnz, imm8 */
+ disp = fetch_byte();
+ if(--regs.g.r.b) regs.pc += disp;
+ break;
+
+ /* call and return group except call cc,imm16/ret cc,imm16/rst */
+ case 0xcd:
+ op_call(fetch_imm16());
+ break;
+ case 0xc9:
+ op_ret();
+ break;
+
+ /* input and output group */
+ case 0xdb:
+ op_input(R_A, ((uint16_t)regs.g.r.a << 8) | fetch_byte());
+ break;
+ case 0xd3:
+ op_output(((uint16_t)regs.g.r.a << 8) | fetch_byte(), R_A);
+ break;
+
+ default:
+ switch(b67) {
+ case 0:
+ if(SRC_R(op) == 6) {
+ op_load_reg8_imm8(DEST_R(op), fetch_byte());
+ } else if(SRC_R(op) == 4 || SRC_R(op) == 5) {
+ int adj = (op & 1) ? -1 : 1;
+ if(DEST_R(op) != 6) {
+ op_incdec_reg8(DEST_R(op), adj);
+ } else {
+ op_incdec_mem(regs.g.rr.hl, adj);
+ }
+ }
+ break;
+
+ case 1:
+ if(DEST_R(op) != 6 && SRC_R(op) != 6) {
+ op_load_reg8_reg8(DEST_R(op), SRC_R(op));
+ } else {
+ if(SRC_R(op) == 6) {
+ op_load_reg8_mem(DEST_R(op), regs.g.rr.hl);
+ } else if(DEST_R(op) == 6) {
+ op_store_mem_reg8(regs.g.rr.hl, SRC_R(op));
+ }
+ }
+ break;
+
+ case 2:
+ if(SRC_R(op) != 6) {
+ op_alu_reg8(ALUOP(op), SRC_R(op));
+ }
+ break;
+
+ case 3:
+ if(SRC_R(op) == 6) { /* alu-op a, imm8 */
+ op_alu_imm8(ALUOP(op), fetch_byte());
+
+ } else if(SRC_R(op) == 2) { /* jp cc, imm16 */
+ addr = fetch_imm16();
+ if(cond(OPCOND(op))) {
+ regs.pc = addr;
+ }
+
+ } else if(SRC_R(op) == 4) { /* call cc, imm16 */
+ addr = fetch_imm16();
+ if(cond(OPCOND(op))) op_call(addr);
+
+ } else if(SRC_R(op) == 0) { /* ret cc, imm16 */
+ addr = fetch_imm16();
+ if(cond(OPCOND(op))) op_ret();
+
+ } else if(SRC_R(op) == 7) { /* rst */
+ op_call(RST_ADDR(op));
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ break; /* treat any unknown opcodes as nops */
+ }
+}
+
+static void runop_ed(uint8_t op)
+{
+}
+
+static void runop_cb(uint8_t op)
+{
+}
+
+static void runop_dd(uint8_t op)
+{
+}
+
+static void runop_fd(uint8_t op)
+{
+}
+
+static void runop_ddcb(uint8_t op)
+{
+}
+
+static void runop_fdcb(uint8_t op)
+{
+}
+
+static void set_reg8(int r, uint8_t val)
+{
+ *regptr8[r] = val;
+}
+
+static void set_reg8s(int r, int8_t val)
+{
+ *regptr8[r] = *(uint8_t*)&val;
+}
+
+static uint8_t get_reg8(int r)
+{
+ return *regptr8[r];
+}
+
+static int8_t get_reg8s(int r)
+{
+ return *(int8_t*)regptr8[r];
+}
+
+static void set_reg16(int r, uint16_t val)
+{
+ *regptr16[r] = val;
+}
+
+static void set_reg16s(int r, int16_t val)
+{
+ *regptr16[r] = *(uint16_t*)&val;
+}
+
+static uint16_t get_reg16(int r)
+{
+ return *regptr16[r];
+}
+
+static int16_t get_reg16s(int r)
+{
+ return *(int16_t*)regptr16[r];
+}
+
+static void set_flag(unsigned int flag, int val)
+{
+ if(val) {
+ regs.g.r.f |= flag;
+ } else {
+ regs.g.r.f &= ~flag;
+ }
+}
+
+static int parity(int x)
+{
+ int i, s = 0;
+ for(i=0; i<8; i++) {
+ s += x & 1;
+ x >>= 1;
+ }
+ return s & 1;
+}
+
+static int overflow(int x)
+{
+ return x > 127 || x < -128;
+}
+
+static int overflow16(int x)
+{
+ return x > 32767 || x < -32768;
+}
+
+static void op_load_reg8_reg8(int rdest, int rsrc)
+{
+ set_reg8(rdest, get_reg8(rsrc));
+}
+
+static void op_load_reg8_imm8(int rdest, uint8_t imm)
+{
+ set_reg8(rdest, imm);
+}
+
+static void op_load_reg8_mem(int rdest, uint16_t addr)
+{
+ set_reg8(rdest, emu_mem_read(addr));
+}
+
+static void op_store_mem_reg8(uint16_t addr, int rsrc)
+{
+ emu_mem_write(addr, get_reg8(rsrc));
+}
+
+static void op_store_mem_imm8(uint16_t addr, uint8_t imm)
+{
+ emu_mem_write(addr, imm);
+}
+
+static void op_store_mem_reg16(uint16_t addr, int rsrc)
+{
+ uint16_t val = get_reg16(rsrc);
+ emu_mem_write(addr, val);
+ emu_mem_write(addr + 1, val >> 8);
+}
+
+static void op_load_reg16_imm16(int rdest, uint16_t imm)
+{
+ set_reg16(rdest, imm);
+}
+
+static void op_load_reg16_reg16(int rdest, int rsrc)
+{
+ set_reg16(rdest, get_reg16(rsrc));
+}
+
+static void op_exch_mem_reg16(uint16_t addr, int rr)
+{
+ uint16_t val = get_reg16(rr);
+ uint16_t lsb = emu_mem_read(addr);
+ uint16_t msb = emu_mem_read(addr + 1);
+ set_reg16(rr, lsb | (msb << 8));
+ emu_mem_write(addr, val);
+ emu_mem_write(addr + 1, val >> 8);
+}
+
+#define CARRY (regs.g.r.f & 1)
+
+static void op_alu_reg8(int op, int r)
+{
+ op_alu_imm8(op, get_reg8(r));
+}
+
+static void op_alu_imm8(int op, uint8_t imm)
+{
+ int c, h, pv, n = 0;
+ int acc = get_reg8s(R_A);
+ int rval = *(int8_t*)&imm;
+ c = CARRY;
+
+ switch(op) {
+ case ALUOP_ADD:
+ if(0) {
+ case ALUOP_SUB:
+ case ALUOP_CP:
+ rval = -rval;
+ c = -c;
+ n = 1;
+ }
+ h = ((acc & 0xf) + (rval + 0xf)) & 0x10;
+ acc += rval;
+ c = acc & 0x100;
+ pv = overflow(acc);
+ break;
+
+ case ALUOP_ADC:
+ if(0) {
+ case ALUOP_SBC:
+ rval = -rval;
+ c = -c;
+ n = 1;
+ }
+ h = ((acc & 0xf) + (rval + 0xf) + CARRY) & 0x10;
+ acc += rval + CARRY;
+ c = acc & 0x100;
+ pv = overflow(acc);
+ break;
+
+ case ALUOP_AND:
+ acc &= rval;
+ c = 0;
+ h = 1;
+ pv = parity(acc);
+ break;
+ case ALUOP_XOR:
+ acc ^= rval;
+ c = 0;
+ h = 0;
+ pv = parity(acc);
+ break;
+ case ALUOP_OR:
+ acc |= rval;
+ c = 0;
+ h = 0;
+ pv = parity(acc);
+ break;
+ default:
+ return;
+ }
+
+ set_flag(FLAGS_S, acc & 0x80);
+ set_flag(FLAGS_Z, acc == 0);
+ set_flag(FLAGS_H, h);
+ set_flag(FLAGS_PV, pv);
+ set_flag(FLAGS_N, n);
+ set_flag(FLAGS_C, c);
+
+ if(op != ALUOP_CP) {
+ set_reg8s(R_A, acc);
+ }
+}
+
+static void op_incdec_reg8(int r, int adj)
+{
+ int prev = get_reg8s(r);
+ int val = prev + adj;
+
+ set_flag(FLAGS_S, val & 0x80);
+ set_flag(FLAGS_Z, val == 0);
+ set_flag(FLAGS_H, ((prev & 0xf) + adj) & 0x10);
+ set_flag(FLAGS_PV, overflow(val));
+ set_flag(FLAGS_N, adj < 0);
+
+ set_reg8s(r, val);
+}
+
+static void op_incdec_reg16(int r, int adj)
+{
+ set_reg16s(r, get_reg16s(r) + adj);
+}
+
+static void op_incdec_mem(uint16_t addr, int adj)
+{
+ uint16_t lsb = emu_mem_read(addr);
+ uint16_t msb = emu_mem_read(addr + 1);
+ int prev, val;
+
+ lsb |= msb << 8;
+ prev = *(int16_t*)&lsb;
+ val = prev + adj;
+
+ set_flag(FLAGS_S, val & 0x8000);
+ set_flag(FLAGS_Z, val == 0);
+ set_flag(FLAGS_H, ((prev & 0xfff) + adj) & 0x1000);
+ set_flag(FLAGS_PV, overflow16(val));
+ set_flag(FLAGS_N, adj < 0);
+
+ lsb = *(uint16_t*)&val;
+ emu_mem_write(addr, lsb);
+ emu_mem_write(addr + 1, lsb >> 8);
+}
+
+static void op_add_reg16_reg16(int rdest, int rsrc)
+{
+}
+
+static void op_rl_reg8(int r, int width)
+{
+}
+
+static void op_rr_reg8(int r, int width)
+{
+}
+
+static void op_push_reg16(int r)
+{
+}
+
+static void op_pop_reg16(int r)
+{
+}
+
+static void op_call(uint16_t addr)
+{
+}
+
+static void op_ret(void)
+{
+}
+
+static void op_input(int r, uint16_t addr)
+{
+ set_reg8(r, emu_io_read(addr));
+}
+
+static void op_output(uint16_t addr, int r)
+{
+ emu_io_write(addr, get_reg8(r));
+}
--- /dev/null
+#ifndef CPU_H_
+#define CPU_H_
+
+void cpu_reset(void);
+void cpu_step(void);
+
+#endif /* CPU_H_ */
--- /dev/null
+#include "duart.h"
+#include "emu.h"
+
+enum {
+ REG_MRA = 0x0,
+ REG_SRA_CSRA = 0x1,
+ REG_CRA = 0x2,
+ REG_RBA_TBA = 0x3,
+ REG_IPCR_ACR = 0x4,
+ REG_ISR_IMR = 0x5,
+ REG_CUR_CTUR = 0x6,
+ REG_CLR_CTLR = 0x7,
+ REG_MRB = 0x8,
+ REG_SRB_CSRB = 0x9,
+ REG_CRB = 0xa,
+ REG_RBB_TBB = 0xb,
+ REG_IVR = 0xc,
+ REG_IP_OPCR = 0xd,
+ REG_CSTART_OPSET= 0xe,
+ REG_CSTOP_OPCLR = 0xf
+};
+
+enum {
+ CMD_RX_ONOFF = 0x03,
+ CMD_TX_ONOFF = 0x0c,
+ CMD_RST_MPTR = 0x10,
+ CMD_RST_RX = 0x20,
+ CMD_RST_TX = 0x30,
+ CMD_RST_ERR = 0x40,
+ CMD_RST_BRKINT = 0x50,
+ CMD_START_BRK = 0x60,
+ CMD_STOP_BRK = 0x70
+};
+
+enum {
+ STAT_RXRDY = 0x01,
+ STAT_FFULL = 0x02,
+ STAT_TXRDY = 0x04,
+ STAT_TXEMPTY = 0x08,
+ STAT_ERR_OVR = 0x10,
+ STAT_ERR_PAR = 0x20,
+ STAT_ERR_FRM = 0x40,
+ STAT_ERR_BRK = 0x80
+};
+
+struct port {
+ uint8_t mode[2];
+ uint8_t clksel;
+ int modeptr;
+ int tx, rx;
+ uint8_t rxfifo[4];
+ int rxfifo_in, rxfifo_out;
+
+};
+
+static struct port port[2];
+static uint8_t reg_ipcr;
+static uint8_t reg_auxctl;
+static uint8_t reg_istat;
+static uint8_t reg_imask;
+static uint16_t reg_count;
+static uint8_t reg_ivec;
+static uint8_t reg_opcr;
+static uint8_t oport;
+
+void duart_reset(void)
+{
+ int i;
+
+ reg_imask = 0;
+ reg_istat = 0;
+ reg_opcr = 0;
+ reg_ivec = 0xf;
+ oport = 0;
+
+ for(i=0; i<2; i++) {
+ port[i].mode[0] = port[i].mode[1] = 0;
+ port[i].modeptr = 0;
+ port[i].tx = port[i].rx = 0;
+ port[i].rxfifo_in = port[i].rxfifo_out = 0;
+ }
+}
+
+void duart_serin(int port, int c)
+{
+}
+
+static int tx_ready(int pidx)
+{
+ return port[pidx].tx;
+}
+
+static int rx_ready(int pidx)
+{
+ return port[pidx].rxfifo_in != port[pidx].rxfifo_out;
+}
+
+static int rx_full(int pidx)
+{
+ return ((port[pidx].rxfifo_in + 1) & 3) == port[pidx].rxfifo_out;
+}
+
+static void command(int pidx, uint8_t data)
+{
+ if(data & CMD_RX_ONOFF) {
+ port[pidx].rx = (data & CMD_RX_ONOFF) == 1;
+ }
+ if(data & CMD_TX_ONOFF) {
+ port[pidx].tx = (data & CMD_TX_ONOFF) == 4;
+ }
+ switch(data & 0xf0) {
+ case CMD_RST_MPTR:
+ port[pidx].modeptr = 0;
+ break;
+
+ default:
+ break;
+ }
+}
+
+uint8_t duart_read(int rs)
+{
+ uint8_t res;
+ int pidx = (rs >> 3) & 1;
+
+ switch(rs) {
+ case REG_SRA_CSRA:
+ case REG_SRB_CSRB:
+ res = STAT_TXEMPTY | STAT_TXRDY;
+ if(rx_ready(pidx)) {
+ res |= STAT_RXRDY;
+ }
+ if(rx_full(pidx)) {
+ res |= STAT_FFULL;
+ }
+ return res;
+
+ default:
+ break;
+ }
+ return 0;
+}
+
+void duart_write(int rs, uint8_t data)
+{
+ int mptr;
+ int pidx = (rs >> 3) & 1;
+
+ switch(rs) {
+ case REG_CRA:
+ case REG_CRB:
+ command(pidx, data);
+ break;
+
+ case REG_MRA:
+ case REG_MRB:
+ mptr = port[pidx].modeptr;
+ port[pidx].mode[mptr] = data;
+ if(!mptr) port[pidx].modeptr = 1;
+ break;
+
+ case REG_RBA_TBA:
+ case REG_RBB_TBB:
+ if(tx_ready(pidx)) {
+ emu_serout(pidx, data);
+ }
+ break;
+ }
+}
--- /dev/null
+#ifndef DUART_H_
+#define DUART_H_
+
+#include <stdint.h>
+
+void duart_reset(void);
+void duart_serin(int port, int c);
+
+uint8_t duart_read(int rs);
+void duart_write(int rs, uint8_t data);
+
+#endif /* DUART_H_ */
--- /dev/null
+#include <stdlib.h>
+#include "emu.h"
+#include "cpu.h"
+#include "duart.h"
+
+#define RAM_SIZE 0x8000
+static uint8_t ram[RAM_SIZE];
+static uint8_t *rom;
+static int rom_size;
+
+int emu_init(void *romimg, int romsz)
+{
+ rom = romimg;
+ rom_size = romsz;
+
+ emu_reset();
+ return 0;
+}
+
+void emu_reset(void)
+{
+ cpu_reset();
+ duart_reset();
+}
+
+void emu_cleanup(void)
+{
+}
+
+void emu_step(void)
+{
+ cpu_step();
+}
+
+uint8_t emu_mem_read(uint16_t addr)
+{
+ if(addr & 0x8000) { /* RAM */
+ return ram[addr & 0x7fff];
+ } else { /* ROM */
+ if((int)addr < rom_size) {
+ return rom[addr];
+ }
+ }
+ return 0;
+}
+
+void emu_mem_write(uint16_t addr, uint8_t data)
+{
+ if(addr & 0x8000) {
+ ram[addr & 0x7fff] = data;
+ }
+}
+
+uint8_t emu_io_read(uint16_t addr)
+{
+ if((addr & 0xf0) == 0) {
+ return duart_read(addr & 0xf);
+ }
+
+ /* nothing is enabled, the bus floats, return random bits */
+ return rand();
+}
+
+void emu_io_write(uint16_t addr, uint8_t data)
+{
+ if((addr & 0xf0) == 0) {
+ duart_write(addr & 0xf, data);
+ }
+}
+
+void emu_serin(int port, int c)
+{
+ duart_serin(port, c);
+}
--- /dev/null
+#ifndef EMU_H_
+#define EMU_H_
+
+#include <stdint.h>
+
+int emu_init(void *romimg, int romsz);
+void emu_cleanup(void);
+
+void emu_reset(void);
+void emu_step(void);
+
+uint8_t emu_mem_read(uint16_t addr);
+void emu_mem_write(uint16_t addr, uint8_t data);
+uint8_t emu_io_read(uint16_t addr);
+void emu_io_write(uint16_t addr, uint8_t data);
+
+void emu_serin(int port, int c);
+void emu_serout(int port, int c); /* implemented by the backend */
+
+#endif /* EMU_H_ */
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sched.h>
+#include <fcntl.h>
+#include <termios.h>
+#include <sys/stat.h>
+#include <sys/select.h>
+#include <sys/mman.h>
+#include "emu.h"
+
+static void sighandler(int s);
+static int parse_args(int argc, char **argv);
+
+static const char *rom_fname = "rom";
+static const char *termdev = "/dev/tty";
+
+static int ttyfd;
+static struct termios saved_term;
+static volatile int quit;
+
+int main(int argc, char **argv)
+{
+ void *rom;
+ int res, fd, maxfd;
+ struct stat st;
+ struct termios term;
+ fd_set rdset;
+ struct timeval tv = {0, 0};
+
+ if(parse_args(argc, argv) == -1) {
+ return 1;
+ }
+
+ if((fd = open(rom_fname, O_RDONLY)) == -1) {
+ fprintf(stderr, "failed to open ROM image: %s: %s\n", rom_fname, strerror(errno));
+ return -1;
+ }
+ fstat(fd, &st);
+
+ if((rom = mmap(0, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) == (void*)-1) {
+ fprintf(stderr, "failed to map ROM image\n");
+ return -1;
+ }
+
+ if((ttyfd = open(termdev, O_RDWR)) == -1) {
+ fprintf(stderr, "failed to open terminal device: %s: %s\n", termdev, strerror(errno));
+ return -1;
+ }
+ if(tcgetattr(ttyfd, &term) == -1) {
+ perror("failed to get terminal attributes");
+ return -1;
+ }
+ saved_term = term;
+ term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
+ term.c_oflag &= ~OPOST;
+ term.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
+ term.c_cflag = (term.c_cflag & ~(CSIZE | PARENB)) | CS8;
+ term.c_cc[VMIN] = 0;
+ term.c_cc[VTIME] = 1;
+ tcsetattr(ttyfd, TCSAFLUSH, &term);
+
+ if(emu_init(rom, st.st_size) == -1) {
+ return 1;
+ }
+
+ signal(SIGINT, sighandler);
+ signal(SIGQUIT, sighandler);
+ signal(SIGTERM, sighandler);
+ signal(SIGSEGV, sighandler);
+ signal(SIGILL, sighandler);
+
+ while(!quit) {
+ FD_ZERO(&rdset);
+ FD_SET(ttyfd, &rdset);
+
+ maxfd = ttyfd;
+
+ res = select(maxfd + 1, &rdset, 0, 0, &tv);
+ if(quit) break;
+
+ if(res > 0) {
+ if(FD_ISSET(ttyfd, &rdset)) {
+ int i, rd;
+ char buf[256];
+
+ while((rd = read(ttyfd, buf, sizeof buf)) > 0) {
+ for(i=0; i<rd; i++) {
+ emu_serin(0, buf[i]);
+ }
+ }
+ if(!rd) break; /* EOF */
+ }
+ }
+
+ emu_step();
+ sched_yield();
+ }
+
+ emu_cleanup();
+
+ tcsetattr(ttyfd, TCSAFLUSH, &saved_term);
+ return 0;
+}
+
+void emu_serout(int port, int c)
+{
+ write(ttyfd, &c, 1);
+}
+
+static void sighandler(int s)
+{
+ quit = 1;
+}
+
+static int parse_args(int argc, char **argv)
+{
+ int i;
+
+ for(i=1; i<argc; i++) {
+ if(argv[i][0] == '-') {
+ if(argv[i][2] == 0) {
+ switch(argv[i][1]) {
+ case 'r':
+ if(!argv[++i]) {
+ fprintf(stderr, "-r must be followed by a rom image file\n");
+ return -1;
+ }
+ rom_fname = argv[i];
+ break;
+
+ default:
+ fprintf(stderr, "invalid option: %s\n", argv[i]);
+ return -1;
+ }
+ } else {
+ fprintf(stderr, "invalid option: %s\n", argv[i]);
+ return -1;
+ }
+ } else {
+ fprintf(stderr, "unexpected argument: %s\n", argv[i]);
+ return -1;
+ }
+ }
+ return 0;
+}
+++ /dev/null
-\ 2Compiled from glue.pld by GALasm, then modified by hand
-to make it work with minipro.
-Device: GAL16V8*
-F0*
-G0*
-QF2194*
-L0000 11111111111110111111111110111101*
-L0256 11111111111101111111111110111101*
-L0512 10101011101111111111011111101011*
-L0544 10101011101111111111011011111011*
-L0768 10101011101111111111011111101011*
-L0800 10101011101111111111011011111011*
-L1024 11111111111111111111101111111011*
-L2048 00010000*
-L2056 0110011101101100011101010110010101111010001110000011000000000000*
-L2120 00000011*
-L2128 1111111111111111111111111111111111111111111111111111111111111111*
-L2192 1*
-L2193 0*
-C2427*
-\ 38009
+++ /dev/null
-GAL16V8
-gluez80
-
-A4 A5 A6 A7 A15 NC M1 MREQ IOREQ GND
-RFSH RD WR NC /IACK UARTENP /UARTEN /RAMEN /ROMEN VCC
-
-ROMEN = /MREQ * RFSH * /A15
-RAMEN = /MREQ * RFSH * A15
-UARTEN = /IOREQ*M1*/A7*/A6*/A5*/A4*/RD + /IOREQ*M1*/A7*/A6*/A5*/A4*/WR
-UARTENP = /IOREQ*M1*/A7*/A6*/A5*/A4*/RD + /IOREQ*M1*/A7*/A6*/A5*/A4*/WR
-IACK = /IOREQ * /M1
-
-DESCRIPTION
-Z80 computer 2 glue logic and address decoding
-/ROMEN enables the ROM for memory cycles from 0000h to 0fffh
-/RAMEN enables the RAM for memory cycles from 1000h to ffffh
-/UARTEN enables the DUART for I/O cycles from port 0 to 15
-UARTENP is the negation of /UARTEN, needed for the DUART wait state logic
-/IACK signifies an interrupt acknowledge cycle
--- /dev/null
+glue.jed: glue.pld
+
+%.jed: %.pld
+ galasm $<
+
+.PHONY: program
+program: glue.jed
+ minipro -p ATF16V8B -c config -w $<
--- /dev/null
+\ 2Compiled from glue.pld by GALasm, then modified by hand
+to make it work with minipro.
+Device: GAL16V8*
+F0*
+G0*
+QF2194*
+L0000 11111111111110111111111110111101*
+L0256 11111111111101111111111110111101*
+L0512 10101011101111111111011111101011*
+L0544 10101011101111111111011011111011*
+L0768 10101011101111111111011111101011*
+L0800 10101011101111111111011011111011*
+L1024 11111111111111111111101111111011*
+L2048 00010000*
+L2056 0110011101101100011101010110010101111010001110000011000000000000*
+L2120 00000011*
+L2128 1111111111111111111111111111111111111111111111111111111111111111*
+L2192 1*
+L2193 0*
+C2427*
+\ 38009
--- /dev/null
+GAL16V8
+gluez80
+
+A4 A5 A6 A7 A15 NC M1 MREQ IOREQ GND
+RFSH RD WR NC /IACK UARTENP /UARTEN /RAMEN /ROMEN VCC
+
+ROMEN = /MREQ * RFSH * /A15
+RAMEN = /MREQ * RFSH * A15
+UARTEN = /IOREQ*M1*/A7*/A6*/A5*/A4*/RD + /IOREQ*M1*/A7*/A6*/A5*/A4*/WR
+UARTENP = /IOREQ*M1*/A7*/A6*/A5*/A4*/RD + /IOREQ*M1*/A7*/A6*/A5*/A4*/WR
+IACK = /IOREQ * /M1
+
+DESCRIPTION
+Z80 computer 2 glue logic and address decoding
+/ROMEN enables the ROM for memory cycles from 0000h to 0fffh
+/RAMEN enables the RAM for memory cycles from 1000h to ffffh
+/UARTEN enables the DUART for I/O cycles from port 0 to 15
+UARTENP is the negation of /UARTEN, needed for the DUART wait state logic
+/IACK signifies an interrupt acknowledge cycle
--- /dev/null
+(sym_lib_table
+ (lib (name z80comp2)(type Legacy)(uri ${KIPRJMOD}/z80comp2.lib)(options "")(descr ""))
+)
--- /dev/null
+EESchema-LIBRARY Version 2.4
+#encoding utf-8
+#
+# 74xx_74HC14
+#
+DEF 74xx_74HC14 U 0 40 Y Y 7 L N
+F0 "U" 0 50 50 H V C CNN
+F1 "74xx_74HC14" 0 -50 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS 74LS14
+$FPLIST
+ DIP*W7.62mm*
+$ENDFPLIST
+DRAW
+S -200 300 200 -300 7 1 10 f
+P 4 1 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 2 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 3 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 4 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 5 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 6 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 3 1 1 0 -75 -50 -75 50 -25 50 N
+P 4 1 1 0 -100 -50 -25 -50 -25 50 0 50 N
+P 3 2 1 0 -75 -50 -75 50 -25 50 N
+P 4 2 1 0 -100 -50 -25 -50 -25 50 0 50 N
+P 3 3 1 0 -75 -50 -75 50 -25 50 N
+P 4 3 1 0 -100 -50 -25 -50 -25 50 0 50 N
+P 3 4 1 0 -75 -50 -75 50 -25 50 N
+P 4 4 1 0 -100 -50 -25 -50 -25 50 0 50 N
+P 3 5 1 0 -75 -50 -75 50 -25 50 N
+P 4 5 1 0 -100 -50 -25 -50 -25 50 0 50 N
+P 3 6 1 0 -75 -50 -75 50 -25 50 N
+P 4 6 1 0 -100 -50 -25 -50 -25 50 0 50 N
+X ~ 1 -300 0 150 R 50 50 1 0 I
+X ~ 2 300 0 150 L 50 50 1 0 O I
+X ~ 3 -300 0 150 R 50 50 2 0 I
+X ~ 4 300 0 150 L 50 50 2 0 O I
+X ~ 5 -300 0 150 R 50 50 3 0 I
+X ~ 6 300 0 150 L 50 50 3 0 O I
+X ~ 8 300 0 150 L 50 50 4 0 O I
+X ~ 9 -300 0 150 R 50 50 4 0 I
+X ~ 10 300 0 150 L 50 50 5 0 O I
+X ~ 11 -300 0 150 R 50 50 5 0 I
+X ~ 12 300 0 150 L 50 50 6 0 O I
+X ~ 13 -300 0 150 R 50 50 6 0 I
+X VCC 14 0 500 200 D 50 50 7 0 W
+X GND 7 0 -500 200 U 50 50 7 0 W
+ENDDRAW
+ENDDEF
+#
+# 74xx_74LS05
+#
+DEF 74xx_74LS05 U 0 40 Y Y 7 L N
+F0 "U" 0 50 50 H V C CNN
+F1 "74xx_74LS05" 0 -50 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS 74LS06 74LS06N
+$FPLIST
+ DIP*W7.62mm*
+$ENDFPLIST
+DRAW
+S -200 300 200 -300 7 1 10 f
+P 4 1 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 2 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 3 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 4 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 5 0 10 -150 150 -150 -150 150 0 -150 150 f
+P 4 6 0 10 -150 150 -150 -150 150 0 -150 150 f
+X ~ 1 -300 0 150 R 50 50 1 0 I
+X ~ 2 300 0 150 L 50 50 1 0 C I
+X ~ 3 -300 0 150 R 50 50 2 0 I
+X ~ 4 300 0 150 L 50 50 2 0 C I
+X ~ 5 -300 0 150 R 50 50 3 0 I
+X ~ 6 300 0 150 L 50 50 3 0 C I
+X ~ 8 300 0 150 L 50 50 4 0 C I
+X ~ 9 -300 0 150 R 50 50 4 0 I
+X ~ 10 300 0 150 L 50 50 5 0 C I
+X ~ 11 -300 0 150 R 50 50 5 0 I
+X ~ 12 300 0 150 L 50 50 6 0 C I
+X ~ 13 -300 0 150 R 50 50 6 0 I
+X VCC 14 0 500 200 D 50 50 7 0 W
+X GND 7 0 -500 200 U 50 50 7 0 W
+ENDDRAW
+ENDDEF
+#
+# CPU_Z80CPU
+#
+DEF CPU_Z80CPU U 0 40 Y Y 1 F N
+F0 "U" -550 1400 50 H V L CNN
+F1 "CPU_Z80CPU" 250 1400 50 H V L CNN
+F2 "" 0 400 50 H I C CNN
+F3 "" 0 400 50 H I C CNN
+$FPLIST
+ DIP*
+ PDIP*
+$ENDFPLIST
+DRAW
+S -550 1350 550 -1350 0 1 10 f
+X A11 1 700 100 150 L 50 50 1 1 O
+X D6 10 700 -1100 150 L 50 50 1 1 B
+X VCC 11 0 1500 150 D 50 50 1 1 W
+X D2 12 700 -700 150 L 50 50 1 1 B
+X D7 13 700 -1200 150 L 50 50 1 1 B
+X D0 14 700 -500 150 L 50 50 1 1 B
+X D1 15 700 -600 150 L 50 50 1 1 B
+X ~INT~ 16 -700 500 150 R 50 50 1 1 I
+X ~NMI~ 17 -700 600 150 R 50 50 1 1 I
+X ~HALT~ 18 -700 -100 150 R 50 50 1 1 O
+X ~MREQ~ 19 -700 -700 150 R 50 50 1 1 O
+X A12 2 700 0 150 L 50 50 1 1 O
+X ~IORQ~ 20 -700 -800 150 R 50 50 1 1 O
+X ~RD~ 21 -700 -500 150 R 50 50 1 1 O
+X ~WR~ 22 -700 -600 150 R 50 50 1 1 O
+X ~BUSACK~ 23 -700 -1200 150 R 50 50 1 1 O
+X ~WAIT~ 24 -700 0 150 R 50 50 1 1 I
+X ~BUSRQ~ 25 -700 -1100 150 R 50 50 1 1 I
+X ~RESET~ 26 -700 1200 150 R 50 50 1 1 I
+X ~M1~ 27 -700 200 150 R 50 50 1 1 O
+X ~RFSH~ 28 -700 100 150 R 50 50 1 1 O
+X GND 29 0 -1500 150 U 50 50 1 1 W
+X A13 3 700 -100 150 L 50 50 1 1 O
+X A0 30 700 1200 150 L 50 50 1 1 O
+X A1 31 700 1100 150 L 50 50 1 1 O
+X A2 32 700 1000 150 L 50 50 1 1 O
+X A3 33 700 900 150 L 50 50 1 1 O
+X A4 34 700 800 150 L 50 50 1 1 O
+X A5 35 700 700 150 L 50 50 1 1 O
+X A6 36 700 600 150 L 50 50 1 1 O
+X A7 37 700 500 150 L 50 50 1 1 O
+X A8 38 700 400 150 L 50 50 1 1 O
+X A9 39 700 300 150 L 50 50 1 1 O
+X A14 4 700 -200 150 L 50 50 1 1 O
+X A10 40 700 200 150 L 50 50 1 1 O
+X A15 5 700 -300 150 L 50 50 1 1 O
+X ~CLK~ 6 -700 900 150 R 50 50 1 1 I C
+X D4 7 700 -900 150 L 50 50 1 1 B
+X D3 8 700 -800 150 L 50 50 1 1 B
+X D5 9 700 -1000 150 L 50 50 1 1 B
+ENDDRAW
+ENDDEF
+#
+# Connector_Conn_01x03_Male
+#
+DEF Connector_Conn_01x03_Male J 0 40 Y N 1 F N
+F0 "J" 0 200 50 H V C CNN
+F1 "Connector_Conn_01x03_Male" 0 -200 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Connector*:*_1x??_*
+$ENDFPLIST
+DRAW
+S 34 -95 0 -105 1 1 6 F
+S 34 5 0 -5 1 1 6 F
+S 34 105 0 95 1 1 6 F
+P 2 1 1 6 50 -100 34 -100 N
+P 2 1 1 6 50 0 34 0 N
+P 2 1 1 6 50 100 34 100 N
+X Pin_1 1 200 100 150 L 50 50 1 1 P
+X Pin_2 2 200 0 150 L 50 50 1 1 P
+X Pin_3 3 200 -100 150 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Connector_DB9_Male
+#
+DEF Connector_DB9_Male J 0 40 Y N 1 F N
+F0 "J" 0 550 50 H V C CNN
+F1 "Connector_DB9_Male" 0 -575 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ DSUB*Male*
+$ENDFPLIST
+DRAW
+C -70 -400 30 0 1 0 F
+C -70 -200 30 0 1 0 F
+C -70 0 30 0 1 0 F
+C -70 200 30 0 1 0 F
+C -70 400 30 0 1 0 F
+C 50 -300 30 0 1 0 F
+C 50 -100 30 0 1 0 F
+C 50 100 30 0 1 0 F
+C 50 300 30 0 1 0 F
+P 2 0 1 0 -150 -400 -100 -400 N
+P 2 0 1 0 -150 -300 20 -300 N
+P 2 0 1 0 -150 -200 -100 -200 N
+P 2 0 1 0 -150 -100 20 -100 N
+P 2 0 1 0 -150 0 -100 0 N
+P 2 0 1 0 -150 100 20 100 N
+P 2 0 1 0 -150 200 -100 200 N
+P 2 0 1 0 -150 300 20 300 N
+P 2 0 1 0 -150 400 -100 400 N
+P 5 0 1 10 -150 -525 -150 525 150 375 150 -375 -150 -525 f
+X 1 1 -300 -400 150 R 50 50 1 1 P
+X 2 2 -300 -200 150 R 50 50 1 1 P
+X 3 3 -300 0 150 R 50 50 1 1 P
+X 4 4 -300 200 150 R 50 50 1 1 P
+X 5 5 -300 400 150 R 50 50 1 1 P
+X 6 6 -300 -300 150 R 50 50 1 1 P
+X 7 7 -300 -100 150 R 50 50 1 1 P
+X 8 8 -300 100 150 R 50 50 1 1 P
+X 9 9 -300 300 150 R 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_C
+#
+DEF Device_C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "Device_C" 25 -100 50 H V L CNN
+F2 "" 38 -150 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 50 50 1 1 P
+X ~ 2 0 -150 110 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_C_Small
+#
+DEF Device_C_Small C 0 10 N N 1 F N
+F0 "C" 10 70 50 H V L CNN
+F1 "Device_C_Small" 10 -80 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 13 -60 -20 60 -20 N
+P 2 0 1 12 -60 20 60 20 N
+X ~ 1 0 100 80 D 50 50 1 1 P
+X ~ 2 0 -100 80 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_Crystal_Small
+#
+DEF Device_Crystal_Small Y 0 40 N N 1 F N
+F0 "Y" 0 100 50 H V C CNN
+F1 "Device_Crystal_Small" 0 -100 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Crystal*
+$ENDFPLIST
+DRAW
+S -30 -60 30 60 0 1 0 N
+P 2 0 1 15 -50 -30 -50 30 N
+P 2 0 1 15 50 -30 50 30 N
+X 1 1 -100 0 50 R 50 50 1 1 P
+X 2 2 100 0 50 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_R
+#
+DEF Device_R R 0 0 N Y 1 F N
+F0 "R" 80 0 50 V V C CNN
+F1 "Device_R" 0 0 50 V V C CNN
+F2 "" -70 0 50 V I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ R_*
+$ENDFPLIST
+DRAW
+S -40 -100 40 100 0 1 10 N
+X ~ 1 0 150 50 D 50 50 1 1 P
+X ~ 2 0 -150 50 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Diode_1N4148
+#
+DEF Diode_1N4148 D 0 40 N N 1 F N
+F0 "D" 0 100 50 H V C CNN
+F1 "Diode_1N4148" 0 -100 50 H V C CNN
+F2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" 0 -175 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS 1N4448 1N4149 1N4151 1N914 BA243 BA244 BA282 BA283 BAV17 BAV18 BAV19 BAV20 BAV21 BAW75 BAW76 BAY93
+$FPLIST
+ D*DO?35*
+$ENDFPLIST
+DRAW
+P 2 0 1 8 -50 50 -50 -50 N
+P 2 0 1 0 50 0 -50 0 N
+P 4 0 1 8 50 50 50 -50 -50 0 50 50 N
+X K 1 -150 0 100 R 50 50 1 1 P
+X A 2 150 0 100 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Interface_UART_MAX232
+#
+DEF Interface_UART_MAX232 U 0 40 Y Y 1 F N
+F0 "U" -100 1125 50 H V R CNN
+F1 "Interface_UART_MAX232" -100 1050 50 H V R CNN
+F2 "" 50 -1050 50 H I L CNN
+F3 "" 0 100 50 H I C CNN
+ALIAS MAX232I MAX202 ADM232A MAX3232 ICL3232
+$FPLIST
+ SOIC*P1.27mm*
+ DIP*W7.62mm*
+ TSSOP*4.4x5mm*P0.65mm*
+$ENDFPLIST
+DRAW
+C -100 -700 25 0 1 10 N
+C -100 -500 25 0 1 10 N
+C 25 -300 25 0 1 10 N
+C 25 -100 25 0 1 10 N
+T 0 -450 -900 50 0 0 0 LOGIC Normal 0 C C
+T 0 450 -900 50 0 0 0 RS232 Normal 0 C C
+S -600 -1000 600 1000 0 1 10 f
+P 2 0 1 10 -150 -300 -325 -300 N
+P 2 0 1 10 -150 -100 -325 -100 N
+P 2 0 1 10 -125 -700 -325 -700 N
+P 2 0 1 10 -125 -500 -325 -500 N
+P 2 0 1 10 50 -300 250 -300 N
+P 2 0 1 10 50 -100 250 -100 N
+P 2 0 1 10 75 -700 250 -700 N
+P 2 0 1 10 75 -500 250 -500 N
+P 4 0 1 10 -150 -225 -150 -375 0 -300 -150 -225 N
+P 4 0 1 10 -150 -25 -150 -175 0 -100 -150 -25 N
+P 4 0 1 10 75 -625 75 -775 -75 -700 75 -625 N
+P 4 0 1 10 75 -425 75 -575 -75 -500 75 -425 N
+X C1+ 1 -800 900 200 R 50 50 1 1 P
+X T2IN 10 -800 -300 200 R 50 50 1 1 I
+X T1IN 11 -800 -100 200 R 50 50 1 1 I
+X R1OUT 12 -800 -500 200 R 50 50 1 1 O
+X R1IN 13 800 -500 200 L 50 50 1 1 I
+X T1OUT 14 800 -100 200 L 50 50 1 1 O
+X GND 15 0 -1200 200 U 50 50 1 1 W
+X VCC 16 0 1200 200 D 50 50 1 1 W
+X VS+ 2 800 400 200 L 50 50 1 1 w
+X C1- 3 -800 600 200 R 50 50 1 1 P
+X C2+ 4 800 900 200 L 50 50 1 1 P
+X C2- 5 800 600 200 L 50 50 1 1 P
+X VS- 6 800 100 200 L 50 50 1 1 w
+X T2OUT 7 800 -300 200 L 50 50 1 1 O
+X R2IN 8 800 -700 200 L 50 50 1 1 I
+X R2OUT 9 -800 -700 200 R 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Memory_EEPROM_28C256
+#
+DEF Memory_EEPROM_28C256 U 0 20 Y Y 1 F N
+F0 "U" -300 1050 50 H V C CNN
+F1 "Memory_EEPROM_28C256" 100 -1050 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ DIP*W15.24mm*
+ SOIC*7.5x17.9mm*P1.27mm*
+$ENDFPLIST
+DRAW
+S -300 1000 300 -1000 1 1 10 f
+X A14 1 -400 -500 100 R 50 50 1 1 I
+X A0 10 -400 900 100 R 50 50 1 1 I
+X D0 11 400 900 100 L 50 50 1 1 T
+X D1 12 400 800 100 L 50 50 1 1 T
+X D2 13 400 700 100 L 50 50 1 1 T
+X GND 14 0 -1100 100 U 50 50 1 1 W
+X D3 15 400 600 100 L 50 50 1 1 T
+X D4 16 400 500 100 L 50 50 1 1 T
+X D5 17 400 400 100 L 50 50 1 1 T
+X D6 18 400 300 100 L 50 50 1 1 T
+X D7 19 400 200 100 L 50 50 1 1 T
+X A12 2 -400 -300 100 R 50 50 1 1 I
+X ~CS 20 -400 -900 100 R 50 50 1 1 I
+X A10 21 -400 -100 100 R 50 50 1 1 I
+X ~OE 22 -400 -800 100 R 50 50 1 1 I
+X A11 23 -400 -200 100 R 50 50 1 1 I
+X A9 24 -400 0 100 R 50 50 1 1 I
+X A8 25 -400 100 100 R 50 50 1 1 I
+X A13 26 -400 -400 100 R 50 50 1 1 I
+X ~WE 27 -400 -700 100 R 50 50 1 1 I
+X VCC 28 0 1100 100 D 50 50 1 1 W
+X A7 3 -400 200 100 R 50 50 1 1 I
+X A6 4 -400 300 100 R 50 50 1 1 I
+X A5 5 -400 400 100 R 50 50 1 1 I
+X A4 6 -400 500 100 R 50 50 1 1 I
+X A3 7 -400 600 100 R 50 50 1 1 I
+X A2 8 -400 700 100 R 50 50 1 1 I
+X A1 9 -400 800 100 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# Switch_SW_Push
+#
+DEF Switch_SW_Push SW 0 40 N N 1 F N
+F0 "SW" 50 100 50 H V L CNN
+F1 "Switch_SW_Push" 0 -60 50 H V C CNN
+F2 "" 0 200 50 H I C CNN
+F3 "" 0 200 50 H I C CNN
+DRAW
+C -80 0 20 0 1 0 N
+C 80 0 20 0 1 0 N
+P 2 0 1 0 0 50 0 120 N
+P 2 0 1 0 100 50 -100 50 N
+X 1 1 -200 0 100 R 50 50 0 1 P
+X 2 2 200 0 100 L 50 50 0 1 P
+ENDDRAW
+ENDDEF
+#
+# Timer_LM555
+#
+DEF Timer_LM555 U 0 20 Y Y 1 F N
+F0 "U" -400 350 50 H V L CNN
+F1 "Timer_LM555" 100 350 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS ICM7555 LMC555xM LMC555xMM LMC555xN MC1455 TLC555CD TLC555CP TLC555CPS NA555 NE555 SE555 SA555
+$FPLIST
+ SOIC*3.9x4.9mm*P1.27mm*
+ DIP*W7.62mm*
+ TSSOP*3x3mm*P0.65mm*
+$ENDFPLIST
+DRAW
+S -350 -300 350 300 0 1 10 f
+S -350 -300 350 300 0 1 10 f
+X GND 1 0 -400 100 U 50 50 0 0 W
+X VCC 8 0 400 100 D 50 50 0 0 W
+X TR 2 -500 200 150 R 50 50 1 1 I
+X Q 3 500 200 150 L 50 50 1 1 O
+X R 4 -500 -200 150 R 50 50 1 1 I I
+X CV 5 -500 0 150 R 50 50 1 1 I
+X THR 6 500 -200 150 L 50 50 1 1 I
+X DIS 7 500 0 150 L 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# power_GND
+#
+DEF power_GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "power_GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# power_VCC
+#
+DEF power_VCC #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -150 50 H I C CNN
+F1 "power_VCC" 0 150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+C 0 75 25 0 1 0 N
+P 2 0 1 0 0 0 0 50 N
+X VCC 1 0 0 0 U 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# z80comp2_mc68681
+#
+DEF z80comp2_mc68681 U 0 40 Y Y 1 F N
+F0 "U" 150 1350 50 H V C CNN
+F1 "z80comp2_mc68681" -250 1350 50 H V C CNN
+F2 "" 550 -550 50 H I C CNN
+F3 "" 550 -550 50 H I C CNN
+DRAW
+S -350 1300 350 -1500 0 1 0 f
+X RS1 1 -550 900 200 R 50 50 1 1 I
+X RXDB 10 550 -650 200 L 50 50 1 1 P
+X TXDB 11 550 -750 200 L 50 50 1 1 P
+X OP1 12 550 400 200 L 50 50 1 1 O
+X OP3 13 550 200 200 L 50 50 1 1 O
+X OP5 14 550 0 200 L 50 50 1 1 O
+X OP7 15 550 -200 200 L 50 50 1 1 O
+X D1 16 -550 300 200 R 50 50 1 1 B
+X D3 17 -550 100 200 R 50 50 1 1 B
+X D5 18 -550 -100 200 R 50 50 1 1 B
+X D7 19 -550 -300 200 R 50 50 1 1 B
+X IP3 2 550 900 200 L 50 50 1 1 I
+X GND 20 0 -1700 200 U 50 50 1 1 W
+X ~IRQ 21 550 -1250 200 L 50 50 1 1 C
+X D6 22 -550 -200 200 R 50 50 1 1 B
+X D4 23 -550 0 200 R 50 50 1 1 B
+X D2 24 -550 200 200 R 50 50 1 1 B
+X D0 25 -550 400 200 R 50 50 1 1 B
+X OP6 26 550 -100 200 L 50 50 1 1 O
+X OP4 27 550 100 200 L 50 50 1 1 O
+X OP2 28 550 300 200 L 50 50 1 1 O
+X OP0 29 550 500 200 L 50 50 1 1 O
+X RS2 3 -550 800 200 R 50 50 1 1 I
+X TXDA 30 550 -400 200 L 50 50 1 1 P
+X RXDA 31 550 -500 200 L 50 50 1 1 P
+X X1/CLK 32 -550 -1150 200 R 50 50 1 1 I
+X X2 33 -550 -1350 200 R 50 50 1 1 O
+X ~RST 34 -550 1200 200 R 50 50 1 1 I
+X ~CS 35 -550 -600 200 R 50 50 1 1 I
+X IP2 36 550 1000 200 L 50 50 1 1 I
+X ~IACK 37 -550 -800 200 R 50 50 1 1 I
+X IP5 38 550 700 200 L 50 50 1 1 I
+X IP4 39 550 800 200 L 50 50 1 1 I
+X IP1 4 550 1100 200 L 50 50 1 1 I
+X VCC 40 0 1500 200 D 50 50 1 1 W
+X RS3 5 -550 700 200 R 50 50 1 1 I
+X RD4 6 -550 600 200 R 50 50 1 1 I
+X IP0 7 550 1200 200 L 50 50 1 1 I
+X R/~W 8 -550 -500 200 R 50 50 1 1 I
+X ~DTACK 9 550 -1350 200 L 50 50 1 1 C
+ENDDRAW
+ENDDEF
+#
+# z80comp2_sram_um61512ak
+#
+DEF z80comp2_sram_um61512ak U 0 40 Y Y 1 F N
+F0 "U" 100 -1200 60 H V C CNN
+F1 "z80comp2_sram_um61512ak" 0 -50 60 V V C CNN
+F2 "" -100 -800 60 H V C CNN
+F3 "" -100 -800 60 H V C CNN
+DRAW
+S -350 1050 350 -1100 0 1 0 f
+X A2 10 -550 800 200 R 50 50 1 1 I
+X A1 11 -550 900 200 R 50 50 1 1 I
+X A0 12 -550 1000 200 R 50 50 1 1 I
+X D0 13 550 1000 200 L 50 50 1 1 B
+X D1 14 550 900 200 L 50 50 1 1 B
+X D2 15 550 800 200 L 50 50 1 1 B
+X GND 16 0 -1300 200 U 50 50 1 1 W
+X D3 17 550 700 200 L 50 50 1 1 B
+X D4 18 550 600 200 L 50 50 1 1 B
+X D5 19 550 500 200 L 50 50 1 1 B
+X D6 20 550 400 200 L 50 50 1 1 B
+X D7 21 550 300 200 L 50 50 1 1 B
+X ~CE1 22 -550 -950 200 R 50 50 1 1 I I
+X A10 23 -550 0 200 R 50 50 1 1 I
+X ~OE 24 -550 -750 200 R 50 50 1 1 I I
+X A11 25 -550 -100 200 R 50 50 1 1 I
+X A9 26 -550 100 200 R 50 50 1 1 I
+X A8 27 -550 200 200 R 50 50 1 1 I
+X A13 28 -550 -300 200 R 50 50 1 1 I
+X ~WE 29 -550 -850 200 R 50 50 1 1 I I
+X A14 3 -550 -400 200 R 50 50 1 1 I
+X CE2 30 -550 -1050 200 R 50 50 1 1 I
+X A15 31 -550 -500 200 R 50 50 1 1 I
+X VCC 32 0 1250 200 D 50 50 1 1 W
+X A12 4 -550 -200 200 R 50 50 1 1 I
+X A7 5 -550 300 200 R 50 50 1 1 I
+X A6 6 -550 400 200 R 50 50 1 1 I
+X A5 7 -550 500 200 R 50 50 1 1 I
+X A4 8 -550 600 200 R 50 50 1 1 I
+X A3 9 -550 700 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# z80comp2_z80glue
+#
+DEF z80comp2_z80glue U 0 40 Y Y 1 F N
+F0 "U" 100 650 50 H V C CNN
+F1 "z80comp2_z80glue" -200 650 50 H V C CNN
+F2 "" -350 -400 50 H I C CNN
+F3 "" -350 -400 50 H I C CNN
+DRAW
+S -350 600 350 -600 0 1 0 f
+X A4 1 -550 550 200 R 50 50 1 1 I
+X GND 10 0 -800 200 U 50 50 1 1 W
+X ~RFSH 11 -550 -350 200 R 50 50 1 1 I
+X ~RD 12 -550 -450 200 R 50 50 1 1 I
+X ~WR 13 -550 -550 200 R 50 50 1 1 I
+X NC 14 200 -250 200 L 50 50 1 1 N N
+X ~IACK 15 550 -150 200 L 50 50 1 1 O
+X UARTEN 16 550 350 200 L 50 50 1 1 O
+X ~UARTEN 17 550 250 200 L 50 50 1 1 O
+X ~RAMEN 18 550 150 200 L 50 50 1 1 O
+X ~ROMEN 19 550 50 200 L 50 50 1 1 O
+X A5 2 -550 450 200 R 50 50 1 1 I
+X A6 3 -550 350 200 R 50 50 1 1 I
+X A7 4 -550 250 200 R 50 50 1 1 I
+X A15 5 -550 150 200 R 50 50 1 1 I
+X NC 6 200 -350 200 L 50 50 1 1 N N
+X ~M1 7 -550 -50 200 R 50 50 1 1 I
+X ~MREQ 8 -550 -150 200 R 50 50 1 1 I
+X ~IOREQ 9 -550 -250 200 R 50 50 1 1 I
+X VCC ~ 0 800 200 D 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
+#End Library
--- /dev/null
+(kicad_pcb (version 4) (host kicad "dummy file") )
--- /dev/null
+EESchema-LIBRARY Version 2.4
+#encoding utf-8
+#
+# mc68681
+#
+DEF mc68681 U 0 40 Y Y 1 F N
+F0 "U" 150 1350 50 H V C CNN
+F1 "mc68681" -250 1350 50 H V C CNN
+F2 "" 550 -550 50 H I C CNN
+F3 "" 550 -550 50 H I C CNN
+DRAW
+S -350 1300 350 -1500 0 1 0 f
+X RS1 1 -550 900 200 R 50 50 1 1 I
+X RXDB 10 550 -650 200 L 50 50 1 1 P
+X TXDB 11 550 -750 200 L 50 50 1 1 P
+X OP1 12 550 400 200 L 50 50 1 1 O
+X OP3 13 550 200 200 L 50 50 1 1 O
+X OP5 14 550 0 200 L 50 50 1 1 O
+X OP7 15 550 -200 200 L 50 50 1 1 O
+X D1 16 -550 300 200 R 50 50 1 1 B
+X D3 17 -550 100 200 R 50 50 1 1 B
+X D5 18 -550 -100 200 R 50 50 1 1 B
+X D7 19 -550 -300 200 R 50 50 1 1 B
+X IP3 2 550 900 200 L 50 50 1 1 I
+X GND 20 0 -1700 200 U 50 50 1 1 W
+X ~IRQ 21 550 -1250 200 L 50 50 1 1 C
+X D6 22 -550 -200 200 R 50 50 1 1 B
+X D4 23 -550 0 200 R 50 50 1 1 B
+X D2 24 -550 200 200 R 50 50 1 1 B
+X D0 25 -550 400 200 R 50 50 1 1 B
+X OP6 26 550 -100 200 L 50 50 1 1 O
+X OP4 27 550 100 200 L 50 50 1 1 O
+X OP2 28 550 300 200 L 50 50 1 1 O
+X OP0 29 550 500 200 L 50 50 1 1 O
+X RS2 3 -550 800 200 R 50 50 1 1 I
+X TXDA 30 550 -400 200 L 50 50 1 1 P
+X RXDA 31 550 -500 200 L 50 50 1 1 P
+X X1/CLK 32 -550 -1150 200 R 50 50 1 1 I
+X X2 33 -550 -1350 200 R 50 50 1 1 O
+X ~RST 34 -550 1200 200 R 50 50 1 1 I
+X ~CS 35 -550 -600 200 R 50 50 1 1 I
+X IP2 36 550 1000 200 L 50 50 1 1 I
+X ~IACK 37 -550 -800 200 R 50 50 1 1 I
+X IP5 38 550 700 200 L 50 50 1 1 I
+X IP4 39 550 800 200 L 50 50 1 1 I
+X IP1 4 550 1100 200 L 50 50 1 1 I
+X VCC 40 0 1500 200 D 50 50 1 1 W
+X RS3 5 -550 700 200 R 50 50 1 1 I
+X RD4 6 -550 600 200 R 50 50 1 1 I
+X IP0 7 550 1200 200 L 50 50 1 1 I
+X R/~W 8 -550 -500 200 R 50 50 1 1 I
+X ~DTACK 9 550 -1350 200 L 50 50 1 1 C
+ENDDRAW
+ENDDEF
+#
+# sram_um61512ak
+#
+DEF sram_um61512ak U 0 40 Y Y 1 F N
+F0 "U" 100 -1200 60 H V C CNN
+F1 "sram_um61512ak" 0 -50 60 V V C CNN
+F2 "" -100 -800 60 H V C CNN
+F3 "" -100 -800 60 H V C CNN
+DRAW
+S -350 1050 350 -1100 0 1 0 f
+X A2 10 -550 800 200 R 50 50 1 1 I
+X A1 11 -550 900 200 R 50 50 1 1 I
+X A0 12 -550 1000 200 R 50 50 1 1 I
+X D0 13 550 1000 200 L 50 50 1 1 B
+X D1 14 550 900 200 L 50 50 1 1 B
+X D2 15 550 800 200 L 50 50 1 1 B
+X GND 16 0 -1300 200 U 50 50 1 1 W
+X D3 17 550 700 200 L 50 50 1 1 B
+X D4 18 550 600 200 L 50 50 1 1 B
+X D5 19 550 500 200 L 50 50 1 1 B
+X D6 20 550 400 200 L 50 50 1 1 B
+X D7 21 550 300 200 L 50 50 1 1 B
+X ~CE1 22 -550 -950 200 R 50 50 1 1 I I
+X A10 23 -550 0 200 R 50 50 1 1 I
+X ~OE 24 -550 -750 200 R 50 50 1 1 I I
+X A11 25 -550 -100 200 R 50 50 1 1 I
+X A9 26 -550 100 200 R 50 50 1 1 I
+X A8 27 -550 200 200 R 50 50 1 1 I
+X A13 28 -550 -300 200 R 50 50 1 1 I
+X ~WE 29 -550 -850 200 R 50 50 1 1 I I
+X A14 3 -550 -400 200 R 50 50 1 1 I
+X CE2 30 -550 -1050 200 R 50 50 1 1 I
+X A15 31 -550 -500 200 R 50 50 1 1 I
+X VCC 32 0 1250 200 D 50 50 1 1 W
+X A12 4 -550 -200 200 R 50 50 1 1 I
+X A7 5 -550 300 200 R 50 50 1 1 I
+X A6 6 -550 400 200 R 50 50 1 1 I
+X A5 7 -550 500 200 R 50 50 1 1 I
+X A4 8 -550 600 200 R 50 50 1 1 I
+X A3 9 -550 700 200 R 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# z80glue
+#
+DEF z80glue U 0 40 Y Y 1 F N
+F0 "U" 100 650 50 H V C CNN
+F1 "z80glue" -200 650 50 H V C CNN
+F2 "" -350 -400 50 H I C CNN
+F3 "" -350 -400 50 H I C CNN
+DRAW
+S -350 600 350 -600 0 1 0 f
+X A4 1 -550 550 200 R 50 50 1 1 I
+X GND 10 0 -800 200 U 50 50 1 1 W
+X ~RFSH 11 -550 -350 200 R 50 50 1 1 I
+X ~RD 12 -550 -450 200 R 50 50 1 1 I
+X ~WR 13 -550 -550 200 R 50 50 1 1 I
+X NC 14 200 -250 200 L 50 50 1 1 N N
+X ~IACK 15 550 -150 200 L 50 50 1 1 O
+X UARTEN 16 550 350 200 L 50 50 1 1 O
+X ~UARTEN 17 550 250 200 L 50 50 1 1 O
+X ~RAMEN 18 550 150 200 L 50 50 1 1 O
+X ~ROMEN 19 550 50 200 L 50 50 1 1 O
+X A5 2 -550 450 200 R 50 50 1 1 I
+X A6 3 -550 350 200 R 50 50 1 1 I
+X A7 4 -550 250 200 R 50 50 1 1 I
+X A15 5 -550 150 200 R 50 50 1 1 I
+X NC 6 200 -350 200 L 50 50 1 1 N N
+X ~M1 7 -550 -50 200 R 50 50 1 1 I
+X ~MREQ 8 -550 -150 200 R 50 50 1 1 I
+X ~IOREQ 9 -550 -250 200 R 50 50 1 1 I
+X VCC ~ 0 800 200 D 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
+#End Library
--- /dev/null
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
--- /dev/null
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title "Z80 computer 2"
+Date "2020-04-29"
+Rev ""
+Comp ""
+Comment1 "License: Creative Commons Attribution Share-Alike (CC BY-SA)"
+Comment2 "Copyright (C) 2020 John Tsiombikas <nuclear@member.fsf.org>"
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L CPU:Z80CPU U3
+U 1 1 5EA29512
+P 2000 4050
+F 0 "U3" H 2200 2650 50 0000 C CNN
+F 1 "Z80CPU" H 2000 4050 50 0000 C CNN
+F 2 "" H 2000 4450 50 0001 C CNN
+F 3 "www.zilog.com/manage_directlink.php?filepath=docs/z80/um0080" H 2000 4450 50 0001 C CNN
+ 1 2000 4050
+ 1 0 0 -1
+$EndComp
+$Comp
+L Memory_EEPROM:28C256 U6
+U 1 1 5EA2C09A
+P 3850 4400
+F 0 "U6" H 4000 3350 50 0000 C CNN
+F 1 "28C256" V 3850 4400 50 0000 C CNN
+F 2 "" H 3850 4400 50 0001 C CNN
+F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/doc0006.pdf" H 3850 4400 50 0001 C CNN
+ 1 3850 4400
+ 1 0 0 -1
+$EndComp
+$Comp
+L power:GND #PWR08
+U 1 1 5EA2ECD7
+P 2000 5550
+F 0 "#PWR08" H 2000 5300 50 0001 C CNN
+F 1 "GND" H 2005 5377 50 0000 C CNN
+F 2 "" H 2000 5550 50 0001 C CNN
+F 3 "" H 2000 5550 50 0001 C CNN
+ 1 2000 5550
+ 1 0 0 -1
+$EndComp
+$Comp
+L power:GND #PWR016
+U 1 1 5EA2F4C0
+P 3850 5500
+F 0 "#PWR016" H 3850 5250 50 0001 C CNN
+F 1 "GND" H 3855 5327 50 0000 C CNN
+F 2 "" H 3850 5500 50 0001 C CNN
+F 3 "" H 3850 5500 50 0001 C CNN
+ 1 3850 5500
+ 1 0 0 -1
+$EndComp
+$Comp
+L power:VCC #PWR07
+U 1 1 5EA2FD95
+P 2000 2550
+F 0 "#PWR07" H 2000 2400 50 0001 C CNN
+F 1 "VCC" H 2017 2723 50 0000 C CNN
+F 2 "" H 2000 2550 50 0001 C CNN
+F 3 "" H 2000 2550 50 0001 C CNN
+ 1 2000 2550
+ 1 0 0 -1
+$EndComp
+$Comp
+L power:VCC #PWR015
+U 1 1 5EA30021
+P 3850 3300
+F 0 "#PWR015" H 3850 3150 50 0001 C CNN
+F 1 "VCC" H 3867 3473 50 0000 C CNN
+F 2 "" H 3850 3300 50 0001 C CNN
+F 3 "" H 3850 3300 50 0001 C CNN
+ 1 3850 3300
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 2700 4550 2900 4550
+Wire Wire Line
+ 2700 4650 2900 4650
+Wire Wire Line
+ 2700 4750 2900 4750
+Wire Wire Line
+ 2700 4850 2900 4850
+Wire Wire Line
+ 2700 4950 2900 4950
+Wire Wire Line
+ 2700 5050 2900 5050
+Wire Wire Line
+ 2700 5150 2900 5150
+Wire Wire Line
+ 2700 5250 2900 5250
+Text Label 2750 4550 0 50 ~ 0
+D0
+Text Label 2750 4650 0 50 ~ 0
+D1
+Text Label 2750 4750 0 50 ~ 0
+D2
+Text Label 2750 4850 0 50 ~ 0
+D3
+Text Label 2750 4950 0 50 ~ 0
+D4
+Text Label 2750 5050 0 50 ~ 0
+D5
+Text Label 2750 5150 0 50 ~ 0
+D6
+Text Label 2750 5250 0 50 ~ 0
+D7
+Entry Wire Line
+ 2900 4550 3000 4650
+Entry Wire Line
+ 2900 4650 3000 4750
+Entry Wire Line
+ 2900 4750 3000 4850
+Entry Wire Line
+ 2900 4850 3000 4950
+Entry Wire Line
+ 2900 4950 3000 5050
+Entry Wire Line
+ 2900 5050 3000 5150
+Entry Wire Line
+ 2900 5150 3000 5250
+Entry Wire Line
+ 2900 5250 3000 5350
+Wire Wire Line
+ 4250 3500 4450 3500
+Wire Wire Line
+ 4250 3600 4450 3600
+Wire Wire Line
+ 4250 3700 4450 3700
+Wire Wire Line
+ 4250 3800 4450 3800
+Wire Wire Line
+ 4250 3900 4450 3900
+Wire Wire Line
+ 4250 4000 4450 4000
+Wire Wire Line
+ 4250 4100 4450 4100
+Wire Wire Line
+ 4250 4200 4450 4200
+Text Label 4300 3500 0 50 ~ 0
+D0
+Text Label 4300 3600 0 50 ~ 0
+D1
+Text Label 4300 3700 0 50 ~ 0
+D2
+Text Label 4300 3800 0 50 ~ 0
+D3
+Text Label 4300 3900 0 50 ~ 0
+D4
+Text Label 4300 4000 0 50 ~ 0
+D5
+Text Label 4300 4100 0 50 ~ 0
+D6
+Text Label 4300 4200 0 50 ~ 0
+D7
+Entry Wire Line
+ 4450 3500 4550 3600
+Entry Wire Line
+ 4450 3600 4550 3700
+Entry Wire Line
+ 4450 3700 4550 3800
+Entry Wire Line
+ 4450 3800 4550 3900
+Entry Wire Line
+ 4450 3900 4550 4000
+Entry Wire Line
+ 4450 4000 4550 4100
+Entry Wire Line
+ 4450 4100 4550 4200
+Entry Wire Line
+ 4450 4200 4550 4300
+Wire Wire Line
+ 2700 2850 2900 2850
+Wire Wire Line
+ 2700 2950 2900 2950
+Wire Wire Line
+ 2700 3050 2900 3050
+Wire Wire Line
+ 2700 3150 2900 3150
+Wire Wire Line
+ 2700 3250 2900 3250
+Wire Wire Line
+ 2700 3350 2900 3350
+Wire Wire Line
+ 2700 3450 2900 3450
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+F 3 "" H 8300 4950 50 0001 C CNN
+ 1 8300 4950
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+$EndComp
+$Comp
+L Connector:DB9_Male J2
+U 1 1 5F10B0BC
+P 10850 4600
+F 0 "J2" H 10800 5150 50 0000 L CNN
+F 1 "SERA" H 10750 4050 50 0000 L CNN
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+ 1 10850 4600
+ 1 0 0 1
+$EndComp
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+$Comp
+L power:GND #PWR028
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+F 2 "" H 10550 5050 50 0001 C CNN
+F 3 "" H 10550 5050 50 0001 C CNN
+ 1 10550 5050
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+$EndComp
+Wire Wire Line
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+Text Label 10350 4400 0 50 ~ 0
+SRTX
+Text Label 10350 4500 0 50 ~ 0
+SRTS
+Text Label 10350 4600 0 50 ~ 0
+STXA
+Text Label 10350 4700 0 50 ~ 0
+SCTS
+Wire Bus Line
+ 3000 5850 4550 5850
+Connection ~ 6550 5050
+Connection ~ 6550 5600
+Text Label 6600 5250 0 50 ~ 0
+UCLK
+Wire Wire Line
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+Connection ~ 7350 5600
+Wire Wire Line
+ 1300 4050 1000 4050
+Text Label 1050 4050 0 50 ~ 0
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+$Comp
+L Device:R R3
+U 1 1 5F385448
+P 850 4050
+F 0 "R3" V 950 4050 50 0000 L CNN
+F 1 "4.7k" V 850 3950 50 0000 L CNN
+F 2 "" V 780 4050 50 0001 C CNN
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+ 1 850 4050
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+$EndComp
+Text Label 1150 3150 0 50 ~ 0
+CLK
+Text Label 1050 3550 0 50 ~ 0
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+Wire Wire Line
+ 1300 3550 1000 3550
+$Comp
+L power:VCC #PWR01
+U 1 1 5F3DA2B2
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+F 1 "VCC" H 700 3500 50 0000 C CNN
+F 2 "" H 700 3350 50 0001 C CNN
+F 3 "" H 700 3350 50 0001 C CNN
+ 1 700 3350
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+$EndComp
+$Comp
+L Device:R R2
+U 1 1 5F3D9F65
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+$EndComp
+Wire Wire Line
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+Connection ~ 700 3550
+Wire Wire Line
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+L Device:C C2
+U 1 1 5F442E26
+P 1850 7150
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+F 3 "~" H 1850 7150 50 0001 C CNN
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+$EndComp
+$Comp
+L Device:C C3
+U 1 1 5F444327
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+F 3 "~" H 2150 7150 50 0001 C CNN
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+$EndComp
+$Comp
+L Device:C C4
+U 1 1 5F444547
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+F 0 "C4" H 2500 7250 50 0000 L CNN
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+$EndComp
+$Comp
+L Device:C C6
+U 1 1 5F444841
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+$EndComp
+$Comp
+L Device:C C7
+U 1 1 5F444B0C
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+F 0 "C7" H 3100 7250 50 0000 L CNN
+F 1 "0.1uF" H 3100 7050 50 0000 L CNN
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+F 3 "~" H 3050 7150 50 0001 C CNN
+ 1 3050 7150
+ 1 0 0 -1
+$EndComp
+$Comp
+L Device:C C8
+U 1 1 5F444DC1
+P 3350 7150
+F 0 "C8" H 3400 7250 50 0000 L CNN
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+$EndComp
+$Comp
+L power:GND #PWR010
+U 1 1 5F4451AA
+P 2600 7300
+F 0 "#PWR010" H 2600 7050 50 0001 C CNN
+F 1 "GND" H 2605 7127 50 0000 C CNN
+F 2 "" H 2600 7300 50 0001 C CNN
+F 3 "" H 2600 7300 50 0001 C CNN
+ 1 2600 7300
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+$EndComp
+$Comp
+L power:VCC #PWR09
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+P 2600 7000
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+F 3 "" H 2600 7000 50 0001 C CNN
+ 1 2600 7000
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+$EndComp
+Wire Wire Line
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+Connection ~ 2150 7000
+Wire Wire Line
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+Connection ~ 2450 7000
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2750 7000
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+$Comp
+L Device:R R1
+U 1 1 5F463EA2
+P 850 3450
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+ 1 850 3450
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+$EndComp
+Connection ~ 700 3450
+Wire Wire Line
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+Wire Wire Line
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+Text Label 1050 3450 0 50 ~ 0
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+$Comp
+L 74xx:74LS05 U4
+U 2 1 5F4A99C1
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+F 0 "U4" H 7300 6050 50 0000 C CNN
+F 1 "74LS05" H 7400 6350 50 0000 C CNN
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+F 3 "http://www.ti.com/lit/gpn/sn74LS05" H 7300 6200 50 0001 C CNN
+ 2 7300 6200
+ -1 0 0 1
+$EndComp
+$Comp
+L Diode:1N4148 D1
+U 1 1 5F4AD646
+P 8050 6200
+F 0 "D1" H 8050 5984 50 0000 C CNN
+F 1 "1N4148" H 8050 6075 50 0000 C CNN
+F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 8050 6025 50 0001 C CNN
+F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 8050 6200 50 0001 C CNN
+ 1 8050 6200
+ -1 0 0 1
+$EndComp
+$Comp
+L Device:R R8
+U 1 1 5F4AE323
+P 7750 6050
+F 0 "R8" H 7680 6004 50 0000 R CNN
+F 1 "4k7" H 7680 6095 50 0000 R CNN
+F 2 "" V 7680 6050 50 0001 C CNN
+F 3 "~" H 7750 6050 50 0001 C CNN
+ 1 7750 6050
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+$EndComp
+$Comp
+L power:VCC #PWR023
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+F 3 "" H 7750 5900 50 0001 C CNN
+ 1 7750 5900
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+$EndComp
+Wire Wire Line
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+Connection ~ 7900 6200
+Wire Wire Line
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+Text Label 8200 6200 0 50 ~ 0
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+Wire Wire Line
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+Wire Wire Line
+ 7000 6200 850 6200
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 1000 4050
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+Text Label 4400 1200 0 50 ~ 0
+UARTEN
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+Text Label 7900 5150 0 50 ~ 0
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+ 8300 4950 8350 4950
+Text Notes 3950 2300 0 50 ~ 0
+GAL16V8: glue.pld
+$Comp
+L power:VCC #PWR04
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+F 1 "VCC" H 1317 5323 50 0000 C CNN
+F 2 "" H 1300 5150 50 0001 C CNN
+F 3 "" H 1300 5150 50 0001 C CNN
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+$EndComp
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+Text Label 3100 1900 0 50 ~ 0
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+Wire Wire Line
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+Text Label 4400 1700 0 50 ~ 0
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+Text Label 6600 4700 0 50 ~ 0
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+L 74xx:74HC14 U1
+U 6 1 5F7B3414
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+F 2 "" H 850 2400 50 0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 850 2400 50 0001 C CNN
+ 6 850 2400
+ 0 1 1 0
+$EndComp
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+Wire Wire Line
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+$Comp
+L power:VCC #PWR03
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+F 3 "" H 1300 1650 50 0001 C CNN
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+$EndComp
+Wire Wire Line
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+L power:GND #PWR02
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+F 2 "" H 750 1350 50 0001 C CNN
+F 3 "" H 750 1350 50 0001 C CNN
+ 1 750 1350
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+$EndComp
+Connection ~ 1200 1250
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+L Switch:SW_Push SW1
+U 1 1 5F933400
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+F 0 "SW1" H 950 1535 50 0000 C CNN
+F 1 "RESET" H 950 1444 50 0000 C CNN
+F 2 "" H 950 1450 50 0001 C CNN
+F 3 "~" H 950 1450 50 0001 C CNN
+ 1 950 1250
+ 1 0 0 -1
+$EndComp
+Connection ~ 1850 1050
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+Wire Wire Line
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+Wire Wire Line
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+$Comp
+L Device:R R5
+U 1 1 5F901EA0
+P 1200 1100
+F 0 "R5" H 1270 1146 50 0000 L CNN
+F 1 "1M" V 1200 1050 50 0000 L CNN
+F 2 "" V 1130 1100 50 0001 C CNN
+F 3 "~" H 1200 1100 50 0001 C CNN
+ 1 1200 1100
+ 1 0 0 -1
+$EndComp
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+$Comp
+L power:VCC #PWR011
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+F 2 "" H 2700 1150 50 0001 C CNN
+F 3 "" H 2700 1150 50 0001 C CNN
+ 1 2700 1150
+ 1 0 0 -1
+$EndComp
+Text Label 2350 1250 0 50 ~ 0
+RST
+Wire Wire Line
+ 2350 1250 2550 1250
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2700 1450
+Wire Wire Line
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+$Comp
+L Device:C_Small C5
+U 1 1 5F880397
+P 2700 1750
+F 0 "C5" H 2609 1704 50 0000 R CNN
+F 1 "0.1uF" H 2609 1795 50 0000 R CNN
+F 2 "" H 2700 1750 50 0001 C CNN
+F 3 "~" H 2700 1750 50 0001 C CNN
+ 1 2700 1750
+ 1 0 0 1
+$EndComp
+Wire Wire Line
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+$Comp
+L Device:R R6
+U 1 1 5F8611FE
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+F 2 "" V 2630 1300 50 0001 C CNN
+F 3 "~" H 2700 1300 50 0001 C CNN
+ 1 2700 1300
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+$EndComp
+$Comp
+L power:VCC #PWR05
+U 1 1 5F860836
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+F 1 "VCC" H 1867 1223 50 0000 C CNN
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+F 3 "" H 1850 1050 50 0001 C CNN
+ 1 1850 1050
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+$EndComp
+$Comp
+L power:GND #PWR06
+U 1 1 5F860553
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+F 1 "GND" H 1855 1677 50 0000 C CNN
+F 2 "" H 1850 1850 50 0001 C CNN
+F 3 "" H 1850 1850 50 0001 C CNN
+ 1 1850 1850
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+$EndComp
+$Comp
+L Timer:LM555 U2
+U 1 1 5F85DCB5
+P 1850 1450
+F 0 "U2" H 2000 1800 50 0000 C CNN
+F 1 "LM555" H 1850 1450 50 0000 C CNN
+F 2 "" H 1850 1450 50 0001 C CNN
+F 3 "http://www.ti.com/lit/ds/symlink/lm555.pdf" H 1850 1450 50 0001 C CNN
+ 1 1850 1450
+ 1 0 0 -1
+$EndComp
+$Comp
+L 74xx:74LS05 U4
+U 1 1 5F9CB042
+P 2450 800
+F 0 "U4" H 2450 650 50 0000 C CNN
+F 1 "74LS05" H 2550 950 50 0000 C CNN
+F 2 "" H 2450 800 50 0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74LS05" H 2450 800 50 0001 C CNN
+ 1 2450 800
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 2150 800 2150 1050
+Wire Wire Line
+ 2150 1050 2550 1050
+Wire Wire Line
+ 2550 1050 2550 1250
+Text Label 2850 800 0 50 ~ 0
+~RST
+$Comp
+L Device:R R4
+U 1 1 5FA0761C
+P 1050 2700
+F 0 "R4" H 1120 2746 50 0000 L CNN
+F 1 "4.7k" V 1050 2600 50 0000 L CNN
+F 2 "" V 980 2700 50 0001 C CNN
+F 3 "~" H 1050 2700 50 0001 C CNN
+ 1 1050 2700
+ 1 0 0 -1
+$EndComp
+Text Notes 1350 700 0 50 ~ 0
+Power-on reset
+Wire Wire Line
+ 2750 800 3000 800
+Wire Wire Line
+ 1050 2850 1300 2850
+Wire Wire Line
+ 1050 2550 2000 2550
+Connection ~ 2000 2550
+Connection ~ 2700 1650
+Connection ~ 1850 1850
+$Comp
+L Device:C_Small C1
+U 1 1 5FC80F1C
+P 1200 1700
+F 0 "C1" H 1109 1654 50 0000 R CNN
+F 1 "0.1uF" H 1109 1745 50 0000 R CNN
+F 2 "" H 1200 1700 50 0001 C CNN
+F 3 "~" H 1200 1700 50 0001 C CNN
+ 1 1200 1700
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+$EndComp
+Wire Wire Line
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+Wire Wire Line
+ 1200 1850 1850 1850
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+Text Label 1200 3850 0 50 ~ 0
+~M1
+Wire Wire Line
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+Text Label 1100 3950 0 50 ~ 0
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+Connection ~ 4700 2600
+Wire Bus Line
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+Wire Bus Line
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+Wire Bus Line
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+Connection ~ 3000 2600
+Wire Wire Line
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+Wire Wire Line
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+Text Label 3200 2000 0 50 ~ 0
+~RD
+Text Label 3200 2100 0 50 ~ 0
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+$Comp
+L 74xx:74HC14 U1
+U 5 1 5FEF66B9
+P 5600 1300
+F 0 "U1" H 5550 1450 50 0000 L CNN
+F 1 "74HC14" H 5550 1150 50 0000 L CNN
+F 2 "" H 5600 1300 50 0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 5600 1300 50 0001 C CNN
+ 5 5600 1300
+ 1 0 0 -1
+$EndComp
+$Comp
+L Device:C_Small C9
+U 1 1 5FEF828C
+P 5100 1100
+F 0 "C9" H 5008 1054 50 0000 R CNN
+F 1 "0.1uF" H 5008 1145 50 0000 R CNN
+F 2 "" H 5100 1100 50 0001 C CNN
+F 3 "~" H 5100 1100 50 0001 C CNN
+ 1 5100 1100
+ -1 0 0 1
+$EndComp
+$Comp
+L Device:R R7
+U 1 1 5FF0FBDF
+P 4850 1300
+F 0 "R7" V 4750 1250 50 0000 L CNN
+F 1 "120R" V 4850 1200 50 0000 L CNN
+F 2 "" V 4780 1300 50 0001 C CNN
+F 3 "~" H 4850 1300 50 0001 C CNN
+ 1 4850 1300
+ 0 1 1 0
+$EndComp
+$Comp
+L power:VCC #PWR018
+U 1 1 5FF26567
+P 5100 1000
+F 0 "#PWR018" H 5100 850 50 0001 C CNN
+F 1 "VCC" H 5117 1173 50 0000 C CNN
+F 2 "" H 5100 1000 50 0001 C CNN
+F 3 "" H 5100 1000 50 0001 C CNN
+ 1 5100 1000
+ 1 0 0 -1
+$EndComp
+$Comp
+L 74xx:74HC14 U1
+U 4 1 5FF485F0
+P 6200 1300
+F 0 "U1" H 6150 1450 50 0000 L CNN
+F 1 "74HC14" H 6150 1150 50 0000 L CNN
+F 2 "" H 6200 1300 50 0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 6200 1300 50 0001 C CNN
+ 4 6200 1300
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 6500 1300 6800 1300
+Wire Wire Line
+ 5000 1300 5100 1300
+Wire Wire Line
+ 5100 1200 5100 1300
+Wire Bus Line
+ 6350 2600 6350 3200
+Wire Bus Line
+ 3000 1100 3000 2600
+Wire Bus Line
+ 6400 3400 6400 4400
+Wire Bus Line
+ 4550 3600 4550 5850
+Wire Bus Line
+ 3000 4650 3000 5850
+Wire Bus Line
+ 3150 2600 3150 4800
+Wire Bus Line
+ 4700 2600 4700 4600
+Wire Bus Line
+ 3000 2600 3000 4250
+Connection ~ 5100 1300
+Wire Wire Line
+ 5100 1300 5300 1300
+Text Notes 5350 950 0 50 ~ 0
+Delay the UART ~CS~ for a few ns to bring the\ntiming between R/~W~ and ~CS~ within spec\n(this might have been a red herring and not necessary)
+$EndSCHEMATC
--- /dev/null
+src = monitor.asm
+obj = $(src:.asm=.o)
+bin = monitor
+
+romtype = 'AT28C256'
+romsize = 2048
+
+AS = vasmz80_oldstyle
+ASFLAGS = -Fvobj
+LD = vlink
+LDFLAGS = -b rawbin1
+
+$(bin): $(obj)
+ $(LD) -o $@ $(LDFLAGS) -Ttext 0 $(obj)
+
+%.o: %.asm
+ $(AS) -o $@ $(ASFLAGS) -L $*.lst $< >/dev/null
+
+.PHONY: clean
+clean:
+ rm -f $(bin) $(obj)
+
+.PHONY: program
+program: $(bin)
+ minipro -p 'AT28C256E' -s -w $<
--- /dev/null
+; vi:filetype=z80:
+
+ include "uart.inc"
+main:
+ ld sp, $0
+
+ ; --- initialize channel A ---
+ ; reset TX/RX
+ ld a, UART_CMD_RST_RX
+ out (UART_REG_CMDA), a
+ ld a, UART_CMD_RST_TX
+ out (UART_REG_CMDA), a
+ ; disable TX/RX
+ ld a, UART_CMD_TX_OFF | UART_CMD_RX_OFF
+ out (UART_REG_CMDA), a
+ ; reset MODEA pointer
+ ld a, UART_CMD_RST_MPTR
+ out (UART_REG_CMDA), a
+ ; set the MODEA register
+ ld a, UART_M1_8BIT | UART_M1_NOPAR
+ out (UART_REG_MODEA), a
+ ld a, UART_M2_STOP1
+ out (UART_REG_MODEA), a
+ ; select baud generator set 1
+ xor a
+ out (UART_REG_AUXCTL), a
+ ; set the baud rate
+ ld a, UART_CSEL_TX_9600 | UART_CSEL_RX_9600
+ out (UART_REG_CSELA), a
+ ; enable TX/RX
+ ld a, UART_CMD_TX_ON | UART_CMD_RX_ON
+ out (UART_REG_CMDA), a
+
+ ; --- initialize channel B ---
+ ; reset TX/RX
+ ld a, UART_CMD_RST_RX
+ out (UART_REG_CMDB), a
+ ld a, UART_CMD_RST_TX
+ out (UART_REG_CMDB), a
+ ; disable TX/RX
+ ld a, UART_CMD_TX_OFF | UART_CMD_RX_OFF
+ out (UART_REG_CMDB), a
+ ; reset MODEB pointer
+ ld a, UART_CMD_RST_MPTR
+ out (UART_REG_CMDB), a
+ ; write all 0 to MODEB registers to leave OP1 as a general purpose output
+ xor a
+ out (UART_REG_MODEB), a
+ out (UART_REG_MODEB), a
+ ; set the output port bit 1
+ ld a, 2
+ out (UART_REG_OSET), a
+
+ ld hl, str_hello
+ call uart_putstr
+ ld hl, str_foo
+ call uart_putstr
+
+hlt: di
+ halt
+ jr hlt
+
+
+uart_putchar:
+ ld b, a
+.wait_txrdy:
+ in a, (UART_REG_STATA)
+ bit 2, a ; test status bit 2 (TXRDY)
+ jr z, .wait_txrdy
+ ld a, b
+ out (UART_REG_DATAA), a
+ ret
+
+uart_putstr:
+ ld a, (hl)
+ cp a, 0
+ ret z
+ call uart_putchar
+ inc hl
+ jr uart_putstr
+
+str_hello asciiz 'The Z80 says hi!',13,10
+str_foo asciiz 'Foobar',13,10
--- /dev/null
+; vi:filetype=z80:
+
+UART_REG_MODEA equ $00 ; MR1A/MR2A
+UART_REG_STATA equ $01 ; SRA (rd)
+UART_REG_CSELA equ $01 ; CSRA (wr)
+UART_REG_CMDA equ $02 ; CRA (wr)
+UART_REG_DATAA equ $03 ; RBA (rd) / TBA (wr)
+
+UART_REG_MODEB equ $08 ; MR1B/MR2B
+UART_REG_STATB equ $09 ; SRB (rd)
+UART_REG_CSELB equ $09 ; CSRB (wr)
+UART_REG_CMDB equ $0a ; CRB (wr)
+UART_REG_DATAB equ $0b ; RBB (rd) / TBB (wr)
+
+UART_REG_IPCR equ $04 ; (rd)
+UART_REG_AUXCTL equ $04 ; ACR (wr)
+UART_REG_ISTAT equ $05 ; ISR (rd)
+UART_REG_IMASK equ $05 ; IMR (wr)
+UART_REG_COUNTH equ $06 ; CUR (rd)
+UART_REG_COUNTL equ $07 ; CLR (rd)
+UART_REG_CTSETH equ $06 ; CTUR (wr)
+UART_REG_CTSETL equ $07 ; CTLR (wr)
+
+UART_REG_IVEC equ $0c ; IVR
+UART_REG_IPORT equ $0d ; (rd)
+UART_REG_OPCR equ $0d ; (wr)
+UART_REG_CSTART_CMD equ $0e ; (rd)
+UART_REG_CSTOP_CMD equ $0f ; (rd)
+UART_REG_OSET equ $0e ; (wr)
+UART_REG_OCLR equ $0f ; (wr)
+
+
+UART_M1_5BIT equ $00
+UART_M1_6BIT equ $01
+UART_M1_7BIT equ $02
+UART_M1_8BIT equ $03
+UART_M1_PAREVEN equ $00
+UART_M1_PARODD equ $04
+UART_M1_NOPAR equ $10
+UART_M1_IRQ_RDY equ $00
+UART_M1_IRQ_FULL equ $40
+UART_M1_RX_RTS equ $80
+
+; stop bit count goes in low nibble of MODE2 register
+UART_M2_STOP1 equ $07
+UART_M2_CTS equ $10
+UART_M2_TX_RTS equ $20
+UART_M2_ECHO equ $40
+UART_M2_LOOP_LOCAL equ $80
+UART_M2_LOOP_REMOTE equ $c0
+
+UART_CSEL_TX_300 equ $04
+UART_CSEL_RX_300 equ $40
+UART_CSEL_TX_9600 equ $0b
+UART_CSEL_RX_9600 equ $b0
+UART_CSEL_TX_38400_19200 equ $0c
+UART_CSEL_RX_38400_19200 equ $c0
+UART_CSEL_TX_TIMER equ $0d
+UART_CSEL_RX_TIMER equ $d0
+
+UART_STAT_RXRDY equ $01
+UART_STAT_FFULL equ $02
+UART_STAT_TXRDY equ $04
+UART_STAT_TXEMPTY equ $08
+UART_STAT_ERR_OVR equ $10
+UART_STAT_ERR_PAR equ $20
+UART_STAT_ERR_FRM equ $40
+UART_STAT_ERR_BRK equ $80
+
+UART_CMD_RX_ON equ $01
+UART_CMD_RX_OFF equ $02
+UART_CMD_TX_ON equ $04
+UART_CMD_TX_OFF equ $08
+UART_CMD_RST_MPTR equ $10
+UART_CMD_RST_RX equ $20
+UART_CMD_RST_TX equ $30
+UART_CMD_RST_ERR equ $40
+UART_CMD_RST_BRKINT equ $50
+UART_CMD_START_BRK equ $60
+UART_CMD_STOP_BRK equ $70
+
+UART_OPCR_OP2_TXCA16 equ $01
+UART_OPCR_OP2_TXA equ $02
+UART_OPCR_OP2_RXA equ $03
+UART_OPCR_OP3_CTR equ $04
+UART_OPCR_OP3_TXB equ $08
+UART_OPCR_OP3_RXB equ $0c
+UART_OPCR_OP4_RXRDYA equ $10
+UART_OPCR_OP5_RXRDYB equ $20
+UART_OPCR_OP6_TXRDYA equ $40
+UART_OPCR_OP7_TXRDYB equ $80
+++ /dev/null
-(sym_lib_table
- (lib (name z80comp2)(type Legacy)(uri ${KIPRJMOD}/z80comp2.lib)(options "")(descr ""))
-)
+++ /dev/null
-EESchema-LIBRARY Version 2.4
-#encoding utf-8
-#
-# 74xx_74HC14
-#
-DEF 74xx_74HC14 U 0 40 Y Y 7 L N
-F0 "U" 0 50 50 H V C CNN
-F1 "74xx_74HC14" 0 -50 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-ALIAS 74LS14
-$FPLIST
- DIP*W7.62mm*
-$ENDFPLIST
-DRAW
-S -200 300 200 -300 7 1 10 f
-P 4 1 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 2 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 3 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 4 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 5 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 6 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 3 1 1 0 -75 -50 -75 50 -25 50 N
-P 4 1 1 0 -100 -50 -25 -50 -25 50 0 50 N
-P 3 2 1 0 -75 -50 -75 50 -25 50 N
-P 4 2 1 0 -100 -50 -25 -50 -25 50 0 50 N
-P 3 3 1 0 -75 -50 -75 50 -25 50 N
-P 4 3 1 0 -100 -50 -25 -50 -25 50 0 50 N
-P 3 4 1 0 -75 -50 -75 50 -25 50 N
-P 4 4 1 0 -100 -50 -25 -50 -25 50 0 50 N
-P 3 5 1 0 -75 -50 -75 50 -25 50 N
-P 4 5 1 0 -100 -50 -25 -50 -25 50 0 50 N
-P 3 6 1 0 -75 -50 -75 50 -25 50 N
-P 4 6 1 0 -100 -50 -25 -50 -25 50 0 50 N
-X ~ 1 -300 0 150 R 50 50 1 0 I
-X ~ 2 300 0 150 L 50 50 1 0 O I
-X ~ 3 -300 0 150 R 50 50 2 0 I
-X ~ 4 300 0 150 L 50 50 2 0 O I
-X ~ 5 -300 0 150 R 50 50 3 0 I
-X ~ 6 300 0 150 L 50 50 3 0 O I
-X ~ 8 300 0 150 L 50 50 4 0 O I
-X ~ 9 -300 0 150 R 50 50 4 0 I
-X ~ 10 300 0 150 L 50 50 5 0 O I
-X ~ 11 -300 0 150 R 50 50 5 0 I
-X ~ 12 300 0 150 L 50 50 6 0 O I
-X ~ 13 -300 0 150 R 50 50 6 0 I
-X VCC 14 0 500 200 D 50 50 7 0 W
-X GND 7 0 -500 200 U 50 50 7 0 W
-ENDDRAW
-ENDDEF
-#
-# 74xx_74LS05
-#
-DEF 74xx_74LS05 U 0 40 Y Y 7 L N
-F0 "U" 0 50 50 H V C CNN
-F1 "74xx_74LS05" 0 -50 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-ALIAS 74LS06 74LS06N
-$FPLIST
- DIP*W7.62mm*
-$ENDFPLIST
-DRAW
-S -200 300 200 -300 7 1 10 f
-P 4 1 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 2 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 3 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 4 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 5 0 10 -150 150 -150 -150 150 0 -150 150 f
-P 4 6 0 10 -150 150 -150 -150 150 0 -150 150 f
-X ~ 1 -300 0 150 R 50 50 1 0 I
-X ~ 2 300 0 150 L 50 50 1 0 C I
-X ~ 3 -300 0 150 R 50 50 2 0 I
-X ~ 4 300 0 150 L 50 50 2 0 C I
-X ~ 5 -300 0 150 R 50 50 3 0 I
-X ~ 6 300 0 150 L 50 50 3 0 C I
-X ~ 8 300 0 150 L 50 50 4 0 C I
-X ~ 9 -300 0 150 R 50 50 4 0 I
-X ~ 10 300 0 150 L 50 50 5 0 C I
-X ~ 11 -300 0 150 R 50 50 5 0 I
-X ~ 12 300 0 150 L 50 50 6 0 C I
-X ~ 13 -300 0 150 R 50 50 6 0 I
-X VCC 14 0 500 200 D 50 50 7 0 W
-X GND 7 0 -500 200 U 50 50 7 0 W
-ENDDRAW
-ENDDEF
-#
-# CPU_Z80CPU
-#
-DEF CPU_Z80CPU U 0 40 Y Y 1 F N
-F0 "U" -550 1400 50 H V L CNN
-F1 "CPU_Z80CPU" 250 1400 50 H V L CNN
-F2 "" 0 400 50 H I C CNN
-F3 "" 0 400 50 H I C CNN
-$FPLIST
- DIP*
- PDIP*
-$ENDFPLIST
-DRAW
-S -550 1350 550 -1350 0 1 10 f
-X A11 1 700 100 150 L 50 50 1 1 O
-X D6 10 700 -1100 150 L 50 50 1 1 B
-X VCC 11 0 1500 150 D 50 50 1 1 W
-X D2 12 700 -700 150 L 50 50 1 1 B
-X D7 13 700 -1200 150 L 50 50 1 1 B
-X D0 14 700 -500 150 L 50 50 1 1 B
-X D1 15 700 -600 150 L 50 50 1 1 B
-X ~INT~ 16 -700 500 150 R 50 50 1 1 I
-X ~NMI~ 17 -700 600 150 R 50 50 1 1 I
-X ~HALT~ 18 -700 -100 150 R 50 50 1 1 O
-X ~MREQ~ 19 -700 -700 150 R 50 50 1 1 O
-X A12 2 700 0 150 L 50 50 1 1 O
-X ~IORQ~ 20 -700 -800 150 R 50 50 1 1 O
-X ~RD~ 21 -700 -500 150 R 50 50 1 1 O
-X ~WR~ 22 -700 -600 150 R 50 50 1 1 O
-X ~BUSACK~ 23 -700 -1200 150 R 50 50 1 1 O
-X ~WAIT~ 24 -700 0 150 R 50 50 1 1 I
-X ~BUSRQ~ 25 -700 -1100 150 R 50 50 1 1 I
-X ~RESET~ 26 -700 1200 150 R 50 50 1 1 I
-X ~M1~ 27 -700 200 150 R 50 50 1 1 O
-X ~RFSH~ 28 -700 100 150 R 50 50 1 1 O
-X GND 29 0 -1500 150 U 50 50 1 1 W
-X A13 3 700 -100 150 L 50 50 1 1 O
-X A0 30 700 1200 150 L 50 50 1 1 O
-X A1 31 700 1100 150 L 50 50 1 1 O
-X A2 32 700 1000 150 L 50 50 1 1 O
-X A3 33 700 900 150 L 50 50 1 1 O
-X A4 34 700 800 150 L 50 50 1 1 O
-X A5 35 700 700 150 L 50 50 1 1 O
-X A6 36 700 600 150 L 50 50 1 1 O
-X A7 37 700 500 150 L 50 50 1 1 O
-X A8 38 700 400 150 L 50 50 1 1 O
-X A9 39 700 300 150 L 50 50 1 1 O
-X A14 4 700 -200 150 L 50 50 1 1 O
-X A10 40 700 200 150 L 50 50 1 1 O
-X A15 5 700 -300 150 L 50 50 1 1 O
-X ~CLK~ 6 -700 900 150 R 50 50 1 1 I C
-X D4 7 700 -900 150 L 50 50 1 1 B
-X D3 8 700 -800 150 L 50 50 1 1 B
-X D5 9 700 -1000 150 L 50 50 1 1 B
-ENDDRAW
-ENDDEF
-#
-# Connector_Conn_01x03_Male
-#
-DEF Connector_Conn_01x03_Male J 0 40 Y N 1 F N
-F0 "J" 0 200 50 H V C CNN
-F1 "Connector_Conn_01x03_Male" 0 -200 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- Connector*:*_1x??_*
-$ENDFPLIST
-DRAW
-S 34 -95 0 -105 1 1 6 F
-S 34 5 0 -5 1 1 6 F
-S 34 105 0 95 1 1 6 F
-P 2 1 1 6 50 -100 34 -100 N
-P 2 1 1 6 50 0 34 0 N
-P 2 1 1 6 50 100 34 100 N
-X Pin_1 1 200 100 150 L 50 50 1 1 P
-X Pin_2 2 200 0 150 L 50 50 1 1 P
-X Pin_3 3 200 -100 150 L 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Connector_DB9_Male
-#
-DEF Connector_DB9_Male J 0 40 Y N 1 F N
-F0 "J" 0 550 50 H V C CNN
-F1 "Connector_DB9_Male" 0 -575 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- DSUB*Male*
-$ENDFPLIST
-DRAW
-C -70 -400 30 0 1 0 F
-C -70 -200 30 0 1 0 F
-C -70 0 30 0 1 0 F
-C -70 200 30 0 1 0 F
-C -70 400 30 0 1 0 F
-C 50 -300 30 0 1 0 F
-C 50 -100 30 0 1 0 F
-C 50 100 30 0 1 0 F
-C 50 300 30 0 1 0 F
-P 2 0 1 0 -150 -400 -100 -400 N
-P 2 0 1 0 -150 -300 20 -300 N
-P 2 0 1 0 -150 -200 -100 -200 N
-P 2 0 1 0 -150 -100 20 -100 N
-P 2 0 1 0 -150 0 -100 0 N
-P 2 0 1 0 -150 100 20 100 N
-P 2 0 1 0 -150 200 -100 200 N
-P 2 0 1 0 -150 300 20 300 N
-P 2 0 1 0 -150 400 -100 400 N
-P 5 0 1 10 -150 -525 -150 525 150 375 150 -375 -150 -525 f
-X 1 1 -300 -400 150 R 50 50 1 1 P
-X 2 2 -300 -200 150 R 50 50 1 1 P
-X 3 3 -300 0 150 R 50 50 1 1 P
-X 4 4 -300 200 150 R 50 50 1 1 P
-X 5 5 -300 400 150 R 50 50 1 1 P
-X 6 6 -300 -300 150 R 50 50 1 1 P
-X 7 7 -300 -100 150 R 50 50 1 1 P
-X 8 8 -300 100 150 R 50 50 1 1 P
-X 9 9 -300 300 150 R 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Device_C
-#
-DEF Device_C C 0 10 N Y 1 F N
-F0 "C" 25 100 50 H V L CNN
-F1 "Device_C" 25 -100 50 H V L CNN
-F2 "" 38 -150 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- C_*
-$ENDFPLIST
-DRAW
-P 2 0 1 20 -80 -30 80 -30 N
-P 2 0 1 20 -80 30 80 30 N
-X ~ 1 0 150 110 D 50 50 1 1 P
-X ~ 2 0 -150 110 U 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Device_C_Small
-#
-DEF Device_C_Small C 0 10 N N 1 F N
-F0 "C" 10 70 50 H V L CNN
-F1 "Device_C_Small" 10 -80 50 H V L CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- C_*
-$ENDFPLIST
-DRAW
-P 2 0 1 13 -60 -20 60 -20 N
-P 2 0 1 12 -60 20 60 20 N
-X ~ 1 0 100 80 D 50 50 1 1 P
-X ~ 2 0 -100 80 U 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Device_Crystal_Small
-#
-DEF Device_Crystal_Small Y 0 40 N N 1 F N
-F0 "Y" 0 100 50 H V C CNN
-F1 "Device_Crystal_Small" 0 -100 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- Crystal*
-$ENDFPLIST
-DRAW
-S -30 -60 30 60 0 1 0 N
-P 2 0 1 15 -50 -30 -50 30 N
-P 2 0 1 15 50 -30 50 30 N
-X 1 1 -100 0 50 R 50 50 1 1 P
-X 2 2 100 0 50 L 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Device_R
-#
-DEF Device_R R 0 0 N Y 1 F N
-F0 "R" 80 0 50 V V C CNN
-F1 "Device_R" 0 0 50 V V C CNN
-F2 "" -70 0 50 V I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- R_*
-$ENDFPLIST
-DRAW
-S -40 -100 40 100 0 1 10 N
-X ~ 1 0 150 50 D 50 50 1 1 P
-X ~ 2 0 -150 50 U 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Diode_1N4148
-#
-DEF Diode_1N4148 D 0 40 N N 1 F N
-F0 "D" 0 100 50 H V C CNN
-F1 "Diode_1N4148" 0 -100 50 H V C CNN
-F2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" 0 -175 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-ALIAS 1N4448 1N4149 1N4151 1N914 BA243 BA244 BA282 BA283 BAV17 BAV18 BAV19 BAV20 BAV21 BAW75 BAW76 BAY93
-$FPLIST
- D*DO?35*
-$ENDFPLIST
-DRAW
-P 2 0 1 8 -50 50 -50 -50 N
-P 2 0 1 0 50 0 -50 0 N
-P 4 0 1 8 50 50 50 -50 -50 0 50 50 N
-X K 1 -150 0 100 R 50 50 1 1 P
-X A 2 150 0 100 L 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Interface_UART_MAX232
-#
-DEF Interface_UART_MAX232 U 0 40 Y Y 1 F N
-F0 "U" -100 1125 50 H V R CNN
-F1 "Interface_UART_MAX232" -100 1050 50 H V R CNN
-F2 "" 50 -1050 50 H I L CNN
-F3 "" 0 100 50 H I C CNN
-ALIAS MAX232I MAX202 ADM232A MAX3232 ICL3232
-$FPLIST
- SOIC*P1.27mm*
- DIP*W7.62mm*
- TSSOP*4.4x5mm*P0.65mm*
-$ENDFPLIST
-DRAW
-C -100 -700 25 0 1 10 N
-C -100 -500 25 0 1 10 N
-C 25 -300 25 0 1 10 N
-C 25 -100 25 0 1 10 N
-T 0 -450 -900 50 0 0 0 LOGIC Normal 0 C C
-T 0 450 -900 50 0 0 0 RS232 Normal 0 C C
-S -600 -1000 600 1000 0 1 10 f
-P 2 0 1 10 -150 -300 -325 -300 N
-P 2 0 1 10 -150 -100 -325 -100 N
-P 2 0 1 10 -125 -700 -325 -700 N
-P 2 0 1 10 -125 -500 -325 -500 N
-P 2 0 1 10 50 -300 250 -300 N
-P 2 0 1 10 50 -100 250 -100 N
-P 2 0 1 10 75 -700 250 -700 N
-P 2 0 1 10 75 -500 250 -500 N
-P 4 0 1 10 -150 -225 -150 -375 0 -300 -150 -225 N
-P 4 0 1 10 -150 -25 -150 -175 0 -100 -150 -25 N
-P 4 0 1 10 75 -625 75 -775 -75 -700 75 -625 N
-P 4 0 1 10 75 -425 75 -575 -75 -500 75 -425 N
-X C1+ 1 -800 900 200 R 50 50 1 1 P
-X T2IN 10 -800 -300 200 R 50 50 1 1 I
-X T1IN 11 -800 -100 200 R 50 50 1 1 I
-X R1OUT 12 -800 -500 200 R 50 50 1 1 O
-X R1IN 13 800 -500 200 L 50 50 1 1 I
-X T1OUT 14 800 -100 200 L 50 50 1 1 O
-X GND 15 0 -1200 200 U 50 50 1 1 W
-X VCC 16 0 1200 200 D 50 50 1 1 W
-X VS+ 2 800 400 200 L 50 50 1 1 w
-X C1- 3 -800 600 200 R 50 50 1 1 P
-X C2+ 4 800 900 200 L 50 50 1 1 P
-X C2- 5 800 600 200 L 50 50 1 1 P
-X VS- 6 800 100 200 L 50 50 1 1 w
-X T2OUT 7 800 -300 200 L 50 50 1 1 O
-X R2IN 8 800 -700 200 L 50 50 1 1 I
-X R2OUT 9 -800 -700 200 R 50 50 1 1 O
-ENDDRAW
-ENDDEF
-#
-# Memory_EEPROM_28C256
-#
-DEF Memory_EEPROM_28C256 U 0 20 Y Y 1 F N
-F0 "U" -300 1050 50 H V C CNN
-F1 "Memory_EEPROM_28C256" 100 -1050 50 H V L CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- DIP*W15.24mm*
- SOIC*7.5x17.9mm*P1.27mm*
-$ENDFPLIST
-DRAW
-S -300 1000 300 -1000 1 1 10 f
-X A14 1 -400 -500 100 R 50 50 1 1 I
-X A0 10 -400 900 100 R 50 50 1 1 I
-X D0 11 400 900 100 L 50 50 1 1 T
-X D1 12 400 800 100 L 50 50 1 1 T
-X D2 13 400 700 100 L 50 50 1 1 T
-X GND 14 0 -1100 100 U 50 50 1 1 W
-X D3 15 400 600 100 L 50 50 1 1 T
-X D4 16 400 500 100 L 50 50 1 1 T
-X D5 17 400 400 100 L 50 50 1 1 T
-X D6 18 400 300 100 L 50 50 1 1 T
-X D7 19 400 200 100 L 50 50 1 1 T
-X A12 2 -400 -300 100 R 50 50 1 1 I
-X ~CS 20 -400 -900 100 R 50 50 1 1 I
-X A10 21 -400 -100 100 R 50 50 1 1 I
-X ~OE 22 -400 -800 100 R 50 50 1 1 I
-X A11 23 -400 -200 100 R 50 50 1 1 I
-X A9 24 -400 0 100 R 50 50 1 1 I
-X A8 25 -400 100 100 R 50 50 1 1 I
-X A13 26 -400 -400 100 R 50 50 1 1 I
-X ~WE 27 -400 -700 100 R 50 50 1 1 I
-X VCC 28 0 1100 100 D 50 50 1 1 W
-X A7 3 -400 200 100 R 50 50 1 1 I
-X A6 4 -400 300 100 R 50 50 1 1 I
-X A5 5 -400 400 100 R 50 50 1 1 I
-X A4 6 -400 500 100 R 50 50 1 1 I
-X A3 7 -400 600 100 R 50 50 1 1 I
-X A2 8 -400 700 100 R 50 50 1 1 I
-X A1 9 -400 800 100 R 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# Switch_SW_Push
-#
-DEF Switch_SW_Push SW 0 40 N N 1 F N
-F0 "SW" 50 100 50 H V L CNN
-F1 "Switch_SW_Push" 0 -60 50 H V C CNN
-F2 "" 0 200 50 H I C CNN
-F3 "" 0 200 50 H I C CNN
-DRAW
-C -80 0 20 0 1 0 N
-C 80 0 20 0 1 0 N
-P 2 0 1 0 0 50 0 120 N
-P 2 0 1 0 100 50 -100 50 N
-X 1 1 -200 0 100 R 50 50 0 1 P
-X 2 2 200 0 100 L 50 50 0 1 P
-ENDDRAW
-ENDDEF
-#
-# Timer_LM555
-#
-DEF Timer_LM555 U 0 20 Y Y 1 F N
-F0 "U" -400 350 50 H V L CNN
-F1 "Timer_LM555" 100 350 50 H V L CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-ALIAS ICM7555 LMC555xM LMC555xMM LMC555xN MC1455 TLC555CD TLC555CP TLC555CPS NA555 NE555 SE555 SA555
-$FPLIST
- SOIC*3.9x4.9mm*P1.27mm*
- DIP*W7.62mm*
- TSSOP*3x3mm*P0.65mm*
-$ENDFPLIST
-DRAW
-S -350 -300 350 300 0 1 10 f
-S -350 -300 350 300 0 1 10 f
-X GND 1 0 -400 100 U 50 50 0 0 W
-X VCC 8 0 400 100 D 50 50 0 0 W
-X TR 2 -500 200 150 R 50 50 1 1 I
-X Q 3 500 200 150 L 50 50 1 1 O
-X R 4 -500 -200 150 R 50 50 1 1 I I
-X CV 5 -500 0 150 R 50 50 1 1 I
-X THR 6 500 -200 150 L 50 50 1 1 I
-X DIS 7 500 0 150 L 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# power_GND
-#
-DEF power_GND #PWR 0 0 Y Y 1 F P
-F0 "#PWR" 0 -250 50 H I C CNN
-F1 "power_GND" 0 -150 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-DRAW
-P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
-X GND 1 0 0 0 D 50 50 1 1 W N
-ENDDRAW
-ENDDEF
-#
-# power_VCC
-#
-DEF power_VCC #PWR 0 0 Y Y 1 F P
-F0 "#PWR" 0 -150 50 H I C CNN
-F1 "power_VCC" 0 150 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-DRAW
-C 0 75 25 0 1 0 N
-P 2 0 1 0 0 0 0 50 N
-X VCC 1 0 0 0 U 50 50 1 1 W N
-ENDDRAW
-ENDDEF
-#
-# z80comp2_mc68681
-#
-DEF z80comp2_mc68681 U 0 40 Y Y 1 F N
-F0 "U" 150 1350 50 H V C CNN
-F1 "z80comp2_mc68681" -250 1350 50 H V C CNN
-F2 "" 550 -550 50 H I C CNN
-F3 "" 550 -550 50 H I C CNN
-DRAW
-S -350 1300 350 -1500 0 1 0 f
-X RS1 1 -550 900 200 R 50 50 1 1 I
-X RXDB 10 550 -650 200 L 50 50 1 1 P
-X TXDB 11 550 -750 200 L 50 50 1 1 P
-X OP1 12 550 400 200 L 50 50 1 1 O
-X OP3 13 550 200 200 L 50 50 1 1 O
-X OP5 14 550 0 200 L 50 50 1 1 O
-X OP7 15 550 -200 200 L 50 50 1 1 O
-X D1 16 -550 300 200 R 50 50 1 1 B
-X D3 17 -550 100 200 R 50 50 1 1 B
-X D5 18 -550 -100 200 R 50 50 1 1 B
-X D7 19 -550 -300 200 R 50 50 1 1 B
-X IP3 2 550 900 200 L 50 50 1 1 I
-X GND 20 0 -1700 200 U 50 50 1 1 W
-X ~IRQ 21 550 -1250 200 L 50 50 1 1 C
-X D6 22 -550 -200 200 R 50 50 1 1 B
-X D4 23 -550 0 200 R 50 50 1 1 B
-X D2 24 -550 200 200 R 50 50 1 1 B
-X D0 25 -550 400 200 R 50 50 1 1 B
-X OP6 26 550 -100 200 L 50 50 1 1 O
-X OP4 27 550 100 200 L 50 50 1 1 O
-X OP2 28 550 300 200 L 50 50 1 1 O
-X OP0 29 550 500 200 L 50 50 1 1 O
-X RS2 3 -550 800 200 R 50 50 1 1 I
-X TXDA 30 550 -400 200 L 50 50 1 1 P
-X RXDA 31 550 -500 200 L 50 50 1 1 P
-X X1/CLK 32 -550 -1150 200 R 50 50 1 1 I
-X X2 33 -550 -1350 200 R 50 50 1 1 O
-X ~RST 34 -550 1200 200 R 50 50 1 1 I
-X ~CS 35 -550 -600 200 R 50 50 1 1 I
-X IP2 36 550 1000 200 L 50 50 1 1 I
-X ~IACK 37 -550 -800 200 R 50 50 1 1 I
-X IP5 38 550 700 200 L 50 50 1 1 I
-X IP4 39 550 800 200 L 50 50 1 1 I
-X IP1 4 550 1100 200 L 50 50 1 1 I
-X VCC 40 0 1500 200 D 50 50 1 1 W
-X RS3 5 -550 700 200 R 50 50 1 1 I
-X RD4 6 -550 600 200 R 50 50 1 1 I
-X IP0 7 550 1200 200 L 50 50 1 1 I
-X R/~W 8 -550 -500 200 R 50 50 1 1 I
-X ~DTACK 9 550 -1350 200 L 50 50 1 1 C
-ENDDRAW
-ENDDEF
-#
-# z80comp2_sram_um61512ak
-#
-DEF z80comp2_sram_um61512ak U 0 40 Y Y 1 F N
-F0 "U" 100 -1200 60 H V C CNN
-F1 "z80comp2_sram_um61512ak" 0 -50 60 V V C CNN
-F2 "" -100 -800 60 H V C CNN
-F3 "" -100 -800 60 H V C CNN
-DRAW
-S -350 1050 350 -1100 0 1 0 f
-X A2 10 -550 800 200 R 50 50 1 1 I
-X A1 11 -550 900 200 R 50 50 1 1 I
-X A0 12 -550 1000 200 R 50 50 1 1 I
-X D0 13 550 1000 200 L 50 50 1 1 B
-X D1 14 550 900 200 L 50 50 1 1 B
-X D2 15 550 800 200 L 50 50 1 1 B
-X GND 16 0 -1300 200 U 50 50 1 1 W
-X D3 17 550 700 200 L 50 50 1 1 B
-X D4 18 550 600 200 L 50 50 1 1 B
-X D5 19 550 500 200 L 50 50 1 1 B
-X D6 20 550 400 200 L 50 50 1 1 B
-X D7 21 550 300 200 L 50 50 1 1 B
-X ~CE1 22 -550 -950 200 R 50 50 1 1 I I
-X A10 23 -550 0 200 R 50 50 1 1 I
-X ~OE 24 -550 -750 200 R 50 50 1 1 I I
-X A11 25 -550 -100 200 R 50 50 1 1 I
-X A9 26 -550 100 200 R 50 50 1 1 I
-X A8 27 -550 200 200 R 50 50 1 1 I
-X A13 28 -550 -300 200 R 50 50 1 1 I
-X ~WE 29 -550 -850 200 R 50 50 1 1 I I
-X A14 3 -550 -400 200 R 50 50 1 1 I
-X CE2 30 -550 -1050 200 R 50 50 1 1 I
-X A15 31 -550 -500 200 R 50 50 1 1 I
-X VCC 32 0 1250 200 D 50 50 1 1 W
-X A12 4 -550 -200 200 R 50 50 1 1 I
-X A7 5 -550 300 200 R 50 50 1 1 I
-X A6 6 -550 400 200 R 50 50 1 1 I
-X A5 7 -550 500 200 R 50 50 1 1 I
-X A4 8 -550 600 200 R 50 50 1 1 I
-X A3 9 -550 700 200 R 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# z80comp2_z80glue
-#
-DEF z80comp2_z80glue U 0 40 Y Y 1 F N
-F0 "U" 100 650 50 H V C CNN
-F1 "z80comp2_z80glue" -200 650 50 H V C CNN
-F2 "" -350 -400 50 H I C CNN
-F3 "" -350 -400 50 H I C CNN
-DRAW
-S -350 600 350 -600 0 1 0 f
-X A4 1 -550 550 200 R 50 50 1 1 I
-X GND 10 0 -800 200 U 50 50 1 1 W
-X ~RFSH 11 -550 -350 200 R 50 50 1 1 I
-X ~RD 12 -550 -450 200 R 50 50 1 1 I
-X ~WR 13 -550 -550 200 R 50 50 1 1 I
-X NC 14 200 -250 200 L 50 50 1 1 N N
-X ~IACK 15 550 -150 200 L 50 50 1 1 O
-X UARTEN 16 550 350 200 L 50 50 1 1 O
-X ~UARTEN 17 550 250 200 L 50 50 1 1 O
-X ~RAMEN 18 550 150 200 L 50 50 1 1 O
-X ~ROMEN 19 550 50 200 L 50 50 1 1 O
-X A5 2 -550 450 200 R 50 50 1 1 I
-X A6 3 -550 350 200 R 50 50 1 1 I
-X A7 4 -550 250 200 R 50 50 1 1 I
-X A15 5 -550 150 200 R 50 50 1 1 I
-X NC 6 200 -350 200 L 50 50 1 1 N N
-X ~M1 7 -550 -50 200 R 50 50 1 1 I
-X ~MREQ 8 -550 -150 200 R 50 50 1 1 I
-X ~IOREQ 9 -550 -250 200 R 50 50 1 1 I
-X VCC ~ 0 800 200 D 50 50 1 1 W
-ENDDRAW
-ENDDEF
-#
-#End Library
+++ /dev/null
-(kicad_pcb (version 4) (host kicad "dummy file") )
+++ /dev/null
-EESchema-LIBRARY Version 2.4
-#encoding utf-8
-#
-# mc68681
-#
-DEF mc68681 U 0 40 Y Y 1 F N
-F0 "U" 150 1350 50 H V C CNN
-F1 "mc68681" -250 1350 50 H V C CNN
-F2 "" 550 -550 50 H I C CNN
-F3 "" 550 -550 50 H I C CNN
-DRAW
-S -350 1300 350 -1500 0 1 0 f
-X RS1 1 -550 900 200 R 50 50 1 1 I
-X RXDB 10 550 -650 200 L 50 50 1 1 P
-X TXDB 11 550 -750 200 L 50 50 1 1 P
-X OP1 12 550 400 200 L 50 50 1 1 O
-X OP3 13 550 200 200 L 50 50 1 1 O
-X OP5 14 550 0 200 L 50 50 1 1 O
-X OP7 15 550 -200 200 L 50 50 1 1 O
-X D1 16 -550 300 200 R 50 50 1 1 B
-X D3 17 -550 100 200 R 50 50 1 1 B
-X D5 18 -550 -100 200 R 50 50 1 1 B
-X D7 19 -550 -300 200 R 50 50 1 1 B
-X IP3 2 550 900 200 L 50 50 1 1 I
-X GND 20 0 -1700 200 U 50 50 1 1 W
-X ~IRQ 21 550 -1250 200 L 50 50 1 1 C
-X D6 22 -550 -200 200 R 50 50 1 1 B
-X D4 23 -550 0 200 R 50 50 1 1 B
-X D2 24 -550 200 200 R 50 50 1 1 B
-X D0 25 -550 400 200 R 50 50 1 1 B
-X OP6 26 550 -100 200 L 50 50 1 1 O
-X OP4 27 550 100 200 L 50 50 1 1 O
-X OP2 28 550 300 200 L 50 50 1 1 O
-X OP0 29 550 500 200 L 50 50 1 1 O
-X RS2 3 -550 800 200 R 50 50 1 1 I
-X TXDA 30 550 -400 200 L 50 50 1 1 P
-X RXDA 31 550 -500 200 L 50 50 1 1 P
-X X1/CLK 32 -550 -1150 200 R 50 50 1 1 I
-X X2 33 -550 -1350 200 R 50 50 1 1 O
-X ~RST 34 -550 1200 200 R 50 50 1 1 I
-X ~CS 35 -550 -600 200 R 50 50 1 1 I
-X IP2 36 550 1000 200 L 50 50 1 1 I
-X ~IACK 37 -550 -800 200 R 50 50 1 1 I
-X IP5 38 550 700 200 L 50 50 1 1 I
-X IP4 39 550 800 200 L 50 50 1 1 I
-X IP1 4 550 1100 200 L 50 50 1 1 I
-X VCC 40 0 1500 200 D 50 50 1 1 W
-X RS3 5 -550 700 200 R 50 50 1 1 I
-X RD4 6 -550 600 200 R 50 50 1 1 I
-X IP0 7 550 1200 200 L 50 50 1 1 I
-X R/~W 8 -550 -500 200 R 50 50 1 1 I
-X ~DTACK 9 550 -1350 200 L 50 50 1 1 C
-ENDDRAW
-ENDDEF
-#
-# sram_um61512ak
-#
-DEF sram_um61512ak U 0 40 Y Y 1 F N
-F0 "U" 100 -1200 60 H V C CNN
-F1 "sram_um61512ak" 0 -50 60 V V C CNN
-F2 "" -100 -800 60 H V C CNN
-F3 "" -100 -800 60 H V C CNN
-DRAW
-S -350 1050 350 -1100 0 1 0 f
-X A2 10 -550 800 200 R 50 50 1 1 I
-X A1 11 -550 900 200 R 50 50 1 1 I
-X A0 12 -550 1000 200 R 50 50 1 1 I
-X D0 13 550 1000 200 L 50 50 1 1 B
-X D1 14 550 900 200 L 50 50 1 1 B
-X D2 15 550 800 200 L 50 50 1 1 B
-X GND 16 0 -1300 200 U 50 50 1 1 W
-X D3 17 550 700 200 L 50 50 1 1 B
-X D4 18 550 600 200 L 50 50 1 1 B
-X D5 19 550 500 200 L 50 50 1 1 B
-X D6 20 550 400 200 L 50 50 1 1 B
-X D7 21 550 300 200 L 50 50 1 1 B
-X ~CE1 22 -550 -950 200 R 50 50 1 1 I I
-X A10 23 -550 0 200 R 50 50 1 1 I
-X ~OE 24 -550 -750 200 R 50 50 1 1 I I
-X A11 25 -550 -100 200 R 50 50 1 1 I
-X A9 26 -550 100 200 R 50 50 1 1 I
-X A8 27 -550 200 200 R 50 50 1 1 I
-X A13 28 -550 -300 200 R 50 50 1 1 I
-X ~WE 29 -550 -850 200 R 50 50 1 1 I I
-X A14 3 -550 -400 200 R 50 50 1 1 I
-X CE2 30 -550 -1050 200 R 50 50 1 1 I
-X A15 31 -550 -500 200 R 50 50 1 1 I
-X VCC 32 0 1250 200 D 50 50 1 1 W
-X A12 4 -550 -200 200 R 50 50 1 1 I
-X A7 5 -550 300 200 R 50 50 1 1 I
-X A6 6 -550 400 200 R 50 50 1 1 I
-X A5 7 -550 500 200 R 50 50 1 1 I
-X A4 8 -550 600 200 R 50 50 1 1 I
-X A3 9 -550 700 200 R 50 50 1 1 I
-ENDDRAW
-ENDDEF
-#
-# z80glue
-#
-DEF z80glue U 0 40 Y Y 1 F N
-F0 "U" 100 650 50 H V C CNN
-F1 "z80glue" -200 650 50 H V C CNN
-F2 "" -350 -400 50 H I C CNN
-F3 "" -350 -400 50 H I C CNN
-DRAW
-S -350 600 350 -600 0 1 0 f
-X A4 1 -550 550 200 R 50 50 1 1 I
-X GND 10 0 -800 200 U 50 50 1 1 W
-X ~RFSH 11 -550 -350 200 R 50 50 1 1 I
-X ~RD 12 -550 -450 200 R 50 50 1 1 I
-X ~WR 13 -550 -550 200 R 50 50 1 1 I
-X NC 14 200 -250 200 L 50 50 1 1 N N
-X ~IACK 15 550 -150 200 L 50 50 1 1 O
-X UARTEN 16 550 350 200 L 50 50 1 1 O
-X ~UARTEN 17 550 250 200 L 50 50 1 1 O
-X ~RAMEN 18 550 150 200 L 50 50 1 1 O
-X ~ROMEN 19 550 50 200 L 50 50 1 1 O
-X A5 2 -550 450 200 R 50 50 1 1 I
-X A6 3 -550 350 200 R 50 50 1 1 I
-X A7 4 -550 250 200 R 50 50 1 1 I
-X A15 5 -550 150 200 R 50 50 1 1 I
-X NC 6 200 -350 200 L 50 50 1 1 N N
-X ~M1 7 -550 -50 200 R 50 50 1 1 I
-X ~MREQ 8 -550 -150 200 R 50 50 1 1 I
-X ~IOREQ 9 -550 -250 200 R 50 50 1 1 I
-X VCC ~ 0 800 200 D 50 50 1 1 W
-ENDDRAW
-ENDDEF
-#
-#End Library
+++ /dev/null
-update=22/05/2015 07:44:53
-version=1
-last_client=kicad
-[general]
-version=1
-RootSch=
-BoardNm=
-[pcbnew]
-version=1
-LastNetListRead=
-UseCmpFile=1
-PadDrill=0.600000000000
-PadDrillOvalY=0.600000000000
-PadSizeH=1.500000000000
-PadSizeV=1.500000000000
-PcbTextSizeV=1.500000000000
-PcbTextSizeH=1.500000000000
-PcbTextThickness=0.300000000000
-ModuleTextSizeV=1.000000000000
-ModuleTextSizeH=1.000000000000
-ModuleTextSizeThickness=0.150000000000
-SolderMaskClearance=0.000000000000
-SolderMaskMinWidth=0.000000000000
-DrawSegmentWidth=0.200000000000
-BoardOutlineThickness=0.100000000000
-ModuleOutlineThickness=0.150000000000
-[cvpcb]
-version=1
-NetIExt=net
-[eeschema]
-version=1
-LibDir=
-[eeschema/libraries]
+++ /dev/null
-EESchema Schematic File Version 4
-EELAYER 30 0
-EELAYER END
-$Descr A4 11693 8268
-encoding utf-8
-Sheet 1 1
-Title "Z80 computer 2"
-Date "2020-04-29"
-Rev ""
-Comp ""
-Comment1 "License: Creative Commons Attribution Share-Alike (CC BY-SA)"
-Comment2 "Copyright (C) 2020 John Tsiombikas <nuclear@member.fsf.org>"
-Comment3 ""
-Comment4 ""
-$EndDescr
-$Comp
-L CPU:Z80CPU U3
-U 1 1 5EA29512
-P 2000 4050
-F 0 "U3" H 2200 2650 50 0000 C CNN
-F 1 "Z80CPU" H 2000 4050 50 0000 C CNN
-F 2 "" H 2000 4450 50 0001 C CNN
-F 3 "www.zilog.com/manage_directlink.php?filepath=docs/z80/um0080" H 2000 4450 50 0001 C CNN
- 1 2000 4050
- 1 0 0 -1
-$EndComp
-$Comp
-L Memory_EEPROM:28C256 U6
-U 1 1 5EA2C09A
-P 3850 4400
-F 0 "U6" H 4000 3350 50 0000 C CNN
-F 1 "28C256" V 3850 4400 50 0000 C CNN
-F 2 "" H 3850 4400 50 0001 C CNN
-F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/doc0006.pdf" H 3850 4400 50 0001 C CNN
- 1 3850 4400
- 1 0 0 -1
-$EndComp
-$Comp
-L power:GND #PWR08
-U 1 1 5EA2ECD7
-P 2000 5550
-F 0 "#PWR08" H 2000 5300 50 0001 C CNN
-F 1 "GND" H 2005 5377 50 0000 C CNN
-F 2 "" H 2000 5550 50 0001 C CNN
-F 3 "" H 2000 5550 50 0001 C CNN
- 1 2000 5550
- 1 0 0 -1
-$EndComp
-$Comp
-L power:GND #PWR016
-U 1 1 5EA2F4C0
-P 3850 5500
-F 0 "#PWR016" H 3850 5250 50 0001 C CNN
-F 1 "GND" H 3855 5327 50 0000 C CNN
-F 2 "" H 3850 5500 50 0001 C CNN
-F 3 "" H 3850 5500 50 0001 C CNN
- 1 3850 5500
- 1 0 0 -1
-$EndComp
-$Comp
-L power:VCC #PWR07
-U 1 1 5EA2FD95
-P 2000 2550
-F 0 "#PWR07" H 2000 2400 50 0001 C CNN
-F 1 "VCC" H 2017 2723 50 0000 C CNN
-F 2 "" H 2000 2550 50 0001 C CNN
-F 3 "" H 2000 2550 50 0001 C CNN
- 1 2000 2550
- 1 0 0 -1
-$EndComp
-$Comp
-L power:VCC #PWR015
-U 1 1 5EA30021
-P 3850 3300
-F 0 "#PWR015" H 3850 3150 50 0001 C CNN
-F 1 "VCC" H 3867 3473 50 0000 C CNN
-F 2 "" H 3850 3300 50 0001 C CNN
-F 3 "" H 3850 3300 50 0001 C CNN
- 1 3850 3300
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 2700 4550 2900 4550
-Wire Wire Line
- 2700 4650 2900 4650
-Wire Wire Line
- 2700 4750 2900 4750
-Wire Wire Line
- 2700 4850 2900 4850
-Wire Wire Line
- 2700 4950 2900 4950
-Wire Wire Line
- 2700 5050 2900 5050
-Wire Wire Line
- 2700 5150 2900 5150
-Wire Wire Line
- 2700 5250 2900 5250
-Text Label 2750 4550 0 50 ~ 0
-D0
-Text Label 2750 4650 0 50 ~ 0
-D1
-Text Label 2750 4750 0 50 ~ 0
-D2
-Text Label 2750 4850 0 50 ~ 0
-D3
-Text Label 2750 4950 0 50 ~ 0
-D4
-Text Label 2750 5050 0 50 ~ 0
-D5
-Text Label 2750 5150 0 50 ~ 0
-D6
-Text Label 2750 5250 0 50 ~ 0
-D7
-Entry Wire Line
- 2900 4550 3000 4650
-Entry Wire Line
- 2900 4650 3000 4750
-Entry Wire Line
- 2900 4750 3000 4850
-Entry Wire Line
- 2900 4850 3000 4950
-Entry Wire Line
- 2900 4950 3000 5050
-Entry Wire Line
- 2900 5050 3000 5150
-Entry Wire Line
- 2900 5150 3000 5250
-Entry Wire Line
- 2900 5250 3000 5350
-Wire Wire Line
- 4250 3500 4450 3500
-Wire Wire Line
- 4250 3600 4450 3600
-Wire Wire Line
- 4250 3700 4450 3700
-Wire Wire Line
- 4250 3800 4450 3800
-Wire Wire Line
- 4250 3900 4450 3900
-Wire Wire Line
- 4250 4000 4450 4000
-Wire Wire Line
- 4250 4100 4450 4100
-Wire Wire Line
- 4250 4200 4450 4200
-Text Label 4300 3500 0 50 ~ 0
-D0
-Text Label 4300 3600 0 50 ~ 0
-D1
-Text Label 4300 3700 0 50 ~ 0
-D2
-Text Label 4300 3800 0 50 ~ 0
-D3
-Text Label 4300 3900 0 50 ~ 0
-D4
-Text Label 4300 4000 0 50 ~ 0
-D5
-Text Label 4300 4100 0 50 ~ 0
-D6
-Text Label 4300 4200 0 50 ~ 0
-D7
-Entry Wire Line
- 4450 3500 4550 3600
-Entry Wire Line
- 4450 3600 4550 3700
-Entry Wire Line
- 4450 3700 4550 3800
-Entry Wire Line
- 4450 3800 4550 3900
-Entry Wire Line
- 4450 3900 4550 4000
-Entry Wire Line
- 4450 4000 4550 4100
-Entry Wire Line
- 4450 4100 4550 4200
-Entry Wire Line
- 4450 4200 4550 4300
-Wire Wire Line
- 2700 2850 2900 2850
-Wire Wire Line
- 2700 2950 2900 2950
-Wire Wire Line
- 2700 3050 2900 3050
-Wire Wire Line
- 2700 3150 2900 3150
-Wire Wire Line
- 2700 3250 2900 3250
-Wire Wire Line
- 2700 3350 2900 3350
-Wire Wire Line
- 2700 3450 2900 3450
-Wire Wire Line
- 2700 3550 2900 3550
-Wire Wire Line
- 2700 3650 2900 3650
-Wire Wire Line
- 2700 3750 2900 3750
-Wire Wire Line
- 2700 3850 2900 3850
-Wire Wire Line
- 2700 3950 2900 3950
-Wire Wire Line
- 2700 4050 2900 4050
-Wire Wire Line
- 2700 4150 2900 4150
-Wire Wire Line
- 2700 4250 2900 4250
-Wire Wire Line
- 2700 4350 2900 4350
-Text Label 2750 2850 0 50 ~ 0
-A0
-Text Label 2750 2950 0 50 ~ 0
-A1
-Text Label 2750 3050 0 50 ~ 0
-A2
-Text Label 2750 3150 0 50 ~ 0
-A3
-Text Label 2750 3250 0 50 ~ 0
-A4
-Text Label 2750 3350 0 50 ~ 0
-A5
-Text Label 2750 3450 0 50 ~ 0
-A6
-Text Label 2750 3550 0 50 ~ 0
-A7
-Text Label 2750 3650 0 50 ~ 0
-A8
-Text Label 2750 3750 0 50 ~ 0
-A9
-Text Label 2750 3850 0 50 ~ 0
-A10
-Text Label 2750 3950 0 50 ~ 0
-A11
-Text Label 2750 4050 0 50 ~ 0
-A12
-Text Label 2750 4150 0 50 ~ 0
-A13
-Text Label 2750 4250 0 50 ~ 0
-A14
-Text Label 2750 4350 0 50 ~ 0
-A15
-Entry Wire Line
- 2900 4350 3000 4250
-Entry Wire Line
- 2900 4250 3000 4150
-Entry Wire Line
- 2900 4150 3000 4050
-Entry Wire Line
- 2900 4050 3000 3950
-Entry Wire Line
- 2900 3950 3000 3850
-Entry Wire Line
- 2900 3850 3000 3750
-Entry Wire Line
- 2900 3750 3000 3650
-Entry Wire Line
- 2900 3650 3000 3550
-Entry Wire Line
- 2900 3550 3000 3450
-Entry Wire Line
- 2900 3450 3000 3350
-Entry Wire Line
- 2900 3350 3000 3250
-Entry Wire Line
- 2900 3250 3000 3150
-Entry Wire Line
- 2900 3150 3000 3050
-Entry Wire Line
- 2900 3050 3000 2950
-Entry Wire Line
- 2900 2950 3000 2850
-Entry Wire Line
- 2900 2850 3000 2750
-Text Label 3450 5850 0 50 ~ 0
-D[0..7]
-Wire Wire Line
- 3450 3500 3250 3500
-Wire Wire Line
- 3450 3600 3250 3600
-Wire Wire Line
- 3450 3700 3250 3700
-Wire Wire Line
- 3450 3800 3250 3800
-Wire Wire Line
- 3450 3900 3250 3900
-Wire Wire Line
- 3450 4000 3250 4000
-Wire Wire Line
- 3450 4100 3250 4100
-Wire Wire Line
- 3450 4200 3250 4200
-Wire Wire Line
- 3450 4300 3250 4300
-Wire Wire Line
- 3450 4400 3250 4400
-Wire Wire Line
- 3450 4500 3250 4500
-Wire Wire Line
- 3450 4600 3250 4600
-Wire Wire Line
- 3450 4700 3250 4700
-Wire Wire Line
- 3450 4800 3250 4800
-Wire Wire Line
- 3450 4900 3250 4900
-Text Label 3300 3500 0 50 ~ 0
-A0
-Text Label 3300 3600 0 50 ~ 0
-A1
-Text Label 3300 3700 0 50 ~ 0
-A2
-Text Label 3300 3800 0 50 ~ 0
-A3
-Text Label 3300 3900 0 50 ~ 0
-A4
-Text Label 3300 4000 0 50 ~ 0
-A5
-Text Label 3300 4100 0 50 ~ 0
-A6
-Text Label 3300 4200 0 50 ~ 0
-A7
-Text Label 3300 4300 0 50 ~ 0
-A8
-Text Label 3300 4400 0 50 ~ 0
-A9
-Text Label 3300 4500 0 50 ~ 0
-A10
-Text Label 3300 4600 0 50 ~ 0
-A11
-Text Label 3300 4700 0 50 ~ 0
-A12
-Text Label 3300 4800 0 50 ~ 0
-A13
-Text Label 3300 4900 0 50 ~ 0
-A14
-Entry Wire Line
- 3150 3400 3250 3500
-Entry Wire Line
- 3150 3500 3250 3600
-Entry Wire Line
- 3150 3600 3250 3700
-Entry Wire Line
- 3150 3700 3250 3800
-Entry Wire Line
- 3150 3800 3250 3900
-Entry Wire Line
- 3150 3900 3250 4000
-Entry Wire Line
- 3150 4000 3250 4100
-Entry Wire Line
- 3150 4100 3250 4200
-Entry Wire Line
- 3150 4200 3250 4300
-Entry Wire Line
- 3150 4300 3250 4400
-Entry Wire Line
- 3150 4400 3250 4500
-Entry Wire Line
- 3150 4500 3250 4600
-Entry Wire Line
- 3150 4600 3250 4700
-Entry Wire Line
- 3150 4700 3250 4800
-Entry Wire Line
- 3150 4800 3250 4900
-Text Label 4250 2600 0 50 ~ 0
-A[0..15]
-$Comp
-L power:VCC #PWR012
-U 1 1 5EA9AA1C
-P 3350 5100
-F 0 "#PWR012" H 3350 4950 50 0001 C CNN
-F 1 "VCC" H 3450 5200 50 0000 C CNN
-F 2 "" H 3350 5100 50 0001 C CNN
-F 3 "" H 3350 5100 50 0001 C CNN
- 1 3350 5100
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 3450 5100 3350 5100
-Wire Bus Line
- 3000 2600 3150 2600
-Connection ~ 3150 2600
-Wire Wire Line
- 3450 5300 3150 5300
-Text Label 3150 5300 0 50 ~ 0
-~ROMEN
-Wire Wire Line
- 3450 5200 3300 5200
-Text Label 3300 5200 0 50 ~ 0
-~RD
-Wire Wire Line
- 1300 4550 1000 4550
-Wire Wire Line
- 1300 4650 1000 4650
-Wire Wire Line
- 1300 4750 1000 4750
-Wire Wire Line
- 1300 4850 1000 4850
-Text Label 1150 4550 0 50 ~ 0
-~RD
-Text Label 1150 4650 0 50 ~ 0
-~WR
-Text Label 1050 4750 0 50 ~ 0
-~MREQ
-Text Label 1050 4850 0 50 ~ 0
-~IOREQ
-Text Label 1150 2850 0 50 ~ 0
-~RST
-$Comp
-L z80comp2:mc68681 U8
-U 1 1 5EAC419A
-P 7350 3900
-F 0 "U8" H 7500 2350 50 0000 C CNN
-F 1 "mc68681" V 7350 3900 50 0000 C CNN
-F 2 "" H 7900 3350 50 0001 C CNN
-F 3 "" H 7900 3350 50 0001 C CNN
- 1 7350 3900
- 1 0 0 -1
-$EndComp
-$Comp
-L z80comp2:sram_um61512ak U7
-U 1 1 5EAC72ED
-P 5550 4300
-F 0 "U7" H 5700 3150 60 0000 C CNN
-F 1 "sram_um61512ak" V 5550 4300 60 0000 C CNN
-F 2 "" H 5450 3500 60 0000 C CNN
-F 3 "" H 5450 3500 60 0000 C CNN
- 1 5550 4300
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 6100 3300 6300 3300
-Wire Wire Line
- 6100 3400 6300 3400
-Wire Wire Line
- 6100 3500 6300 3500
-Wire Wire Line
- 6100 3600 6300 3600
-Wire Wire Line
- 6100 3700 6300 3700
-Wire Wire Line
- 6100 3800 6300 3800
-Wire Wire Line
- 6100 3900 6300 3900
-Wire Wire Line
- 6100 4000 6300 4000
-Text Label 6150 3300 0 50 ~ 0
-D0
-Text Label 6150 3400 0 50 ~ 0
-D1
-Text Label 6150 3500 0 50 ~ 0
-D2
-Text Label 6150 3600 0 50 ~ 0
-D3
-Text Label 6150 3700 0 50 ~ 0
-D4
-Text Label 6150 3800 0 50 ~ 0
-D5
-Text Label 6150 3900 0 50 ~ 0
-D6
-Text Label 6150 4000 0 50 ~ 0
-D7
-Entry Wire Line
- 6300 3300 6400 3400
-Entry Wire Line
- 6300 3400 6400 3500
-Entry Wire Line
- 6300 3500 6400 3600
-Entry Wire Line
- 6300 3600 6400 3700
-Entry Wire Line
- 6300 3700 6400 3800
-Entry Wire Line
- 6300 3800 6400 3900
-Entry Wire Line
- 6300 3900 6400 4000
-Entry Wire Line
- 6300 4000 6400 4100
-Wire Wire Line
- 6500 3500 6800 3500
-Wire Wire Line
- 6500 3600 6800 3600
-Wire Wire Line
- 6500 3700 6800 3700
-Wire Wire Line
- 6500 3800 6800 3800
-Wire Wire Line
- 6500 3900 6800 3900
-Wire Wire Line
- 6500 4000 6800 4000
-Wire Wire Line
- 6500 4100 6800 4100
-Wire Wire Line
- 6500 4200 6800 4200
-Text Label 6650 3500 0 50 ~ 0
-D0
-Text Label 6650 3600 0 50 ~ 0
-D1
-Text Label 6650 3700 0 50 ~ 0
-D2
-Text Label 6650 3800 0 50 ~ 0
-D3
-Text Label 6650 3900 0 50 ~ 0
-D4
-Text Label 6650 4000 0 50 ~ 0
-D5
-Text Label 6650 4100 0 50 ~ 0
-D6
-Text Label 6650 4200 0 50 ~ 0
-D7
-Wire Wire Line
- 5000 4800 4650 4800
-Text Label 4650 4800 0 50 ~ 0
-BANKSEL
-Wire Wire Line
- 5000 3300 4800 3300
-Wire Wire Line
- 5000 3400 4800 3400
-Wire Wire Line
- 5000 3500 4800 3500
-Wire Wire Line
- 5000 3600 4800 3600
-Wire Wire Line
- 5000 3700 4800 3700
-Wire Wire Line
- 5000 3800 4800 3800
-Wire Wire Line
- 5000 3900 4800 3900
-Wire Wire Line
- 5000 4000 4800 4000
-Wire Wire Line
- 5000 4100 4800 4100
-Wire Wire Line
- 5000 4200 4800 4200
-Wire Wire Line
- 5000 4300 4800 4300
-Wire Wire Line
- 5000 4400 4800 4400
-Wire Wire Line
- 5000 4500 4800 4500
-Wire Wire Line
- 5000 4600 4800 4600
-Wire Wire Line
- 5000 4700 4800 4700
-Text Label 4850 3300 0 50 ~ 0
-A0
-Text Label 4850 3400 0 50 ~ 0
-A1
-Text Label 4850 3500 0 50 ~ 0
-A2
-Text Label 4850 3600 0 50 ~ 0
-A3
-Text Label 4850 3700 0 50 ~ 0
-A4
-Text Label 4850 3800 0 50 ~ 0
-A5
-Text Label 4850 3900 0 50 ~ 0
-A6
-Text Label 4850 4000 0 50 ~ 0
-A7
-Text Label 4850 4100 0 50 ~ 0
-A8
-Text Label 4850 4200 0 50 ~ 0
-A9
-Text Label 4850 4300 0 50 ~ 0
-A10
-Text Label 4850 4400 0 50 ~ 0
-A11
-Text Label 4850 4500 0 50 ~ 0
-A12
-Text Label 4850 4600 0 50 ~ 0
-A13
-Text Label 4850 4700 0 50 ~ 0
-A14
-Entry Wire Line
- 4700 3200 4800 3300
-Entry Wire Line
- 4700 3300 4800 3400
-Entry Wire Line
- 4700 3400 4800 3500
-Entry Wire Line
- 4700 3500 4800 3600
-Entry Wire Line
- 4700 3600 4800 3700
-Entry Wire Line
- 4700 3700 4800 3800
-Entry Wire Line
- 4700 3800 4800 3900
-Entry Wire Line
- 4700 3900 4800 4000
-Entry Wire Line
- 4700 4000 4800 4100
-Entry Wire Line
- 4700 4100 4800 4200
-Entry Wire Line
- 4700 4200 4800 4300
-Entry Wire Line
- 4700 4300 4800 4400
-Entry Wire Line
- 4700 4400 4800 4500
-Entry Wire Line
- 4700 4500 4800 4600
-Entry Wire Line
- 4700 4600 4800 4700
-Wire Wire Line
- 5000 5050 4900 5050
-Text Label 4900 5050 0 50 ~ 0
-~RD
-Wire Wire Line
- 5000 5150 4900 5150
-Text Label 4900 5150 0 50 ~ 0
-~WR
-Wire Wire Line
- 5000 5250 4750 5250
-Text Label 4750 5250 0 50 ~ 0
-~RAMEN
-$Comp
-L power:VCC #PWR019
-U 1 1 5EB3084D
-P 5550 3050
-F 0 "#PWR019" H 5550 2900 50 0001 C CNN
-F 1 "VCC" H 5567 3223 50 0000 C CNN
-F 2 "" H 5550 3050 50 0001 C CNN
-F 3 "" H 5550 3050 50 0001 C CNN
- 1 5550 3050
- 1 0 0 -1
-$EndComp
-$Comp
-L power:VCC #PWR017
-U 1 1 5EB32548
-P 4650 5300
-F 0 "#PWR017" H 4650 5150 50 0001 C CNN
-F 1 "VCC" H 4667 5473 50 0000 C CNN
-F 2 "" H 4650 5300 50 0001 C CNN
-F 3 "" H 4650 5300 50 0001 C CNN
- 1 4650 5300
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 4650 5300 4650 5350
-Wire Wire Line
- 4650 5350 5000 5350
-$Comp
-L power:GND #PWR020
-U 1 1 5EB37534
-P 5550 5600
-F 0 "#PWR020" H 5550 5350 50 0001 C CNN
-F 1 "GND" H 5555 5427 50 0000 C CNN
-F 2 "" H 5550 5600 50 0001 C CNN
-F 3 "" H 5550 5600 50 0001 C CNN
- 1 5550 5600
- 1 0 0 -1
-$EndComp
-$Comp
-L power:GND #PWR021
-U 1 1 5EB3BBF0
-P 7350 5600
-F 0 "#PWR021" H 7350 5350 50 0001 C CNN
-F 1 "GND" H 7355 5427 50 0000 C CNN
-F 2 "" H 7350 5600 50 0001 C CNN
-F 3 "" H 7350 5600 50 0001 C CNN
- 1 7350 5600
- 1 0 0 -1
-$EndComp
-$Comp
-L power:VCC #PWR022
-U 1 1 5EB3BF7A
-P 7350 2400
-F 0 "#PWR022" H 7350 2250 50 0001 C CNN
-F 1 "VCC" H 7367 2573 50 0000 C CNN
-F 2 "" H 7350 2400 50 0001 C CNN
-F 3 "" H 7350 2400 50 0001 C CNN
- 1 7350 2400
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 6800 3000 6450 3000
-Wire Wire Line
- 6800 3100 6450 3100
-Wire Wire Line
- 6800 3200 6450 3200
-Wire Wire Line
- 6800 3300 6450 3300
-Text Label 6650 3000 0 50 ~ 0
-A0
-Text Label 6650 3100 0 50 ~ 0
-A1
-Text Label 6650 3200 0 50 ~ 0
-A2
-Text Label 6650 3300 0 50 ~ 0
-A3
-Wire Wire Line
- 6800 4500 6500 4500
-Text Label 6500 4500 0 50 ~ 0
-~UARTEN
-NoConn ~ 11900 2450
-$Comp
-L z80comp2:z80glue U5
-U 1 1 5EB69DED
-P 3850 1550
-F 0 "U5" H 4000 2100 50 0000 C CNN
-F 1 "z80glue" H 3600 900 50 0000 C CNN
-F 2 "" H 3800 1650 50 0001 C CNN
-F 3 "" H 3800 1650 50 0001 C CNN
- 1 3850 1550
- 1 0 0 -1
-$EndComp
-$Comp
-L power:VCC #PWR013
-U 1 1 5EB7EC44
-P 3850 750
-F 0 "#PWR013" H 3850 600 50 0001 C CNN
-F 1 "VCC" H 3867 923 50 0000 C CNN
-F 2 "" H 3850 750 50 0001 C CNN
-F 3 "" H 3850 750 50 0001 C CNN
- 1 3850 750
- 1 0 0 -1
-$EndComp
-$Comp
-L power:GND #PWR014
-U 1 1 5EB872CE
-P 3850 2350
-F 0 "#PWR014" H 3850 2100 50 0001 C CNN
-F 1 "GND" H 3855 2177 50 0000 C CNN
-F 2 "" H 3850 2350 50 0001 C CNN
-F 3 "" H 3850 2350 50 0001 C CNN
- 1 3850 2350
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 3300 1000 3100 1000
-Wire Wire Line
- 3300 1100 3100 1100
-Wire Wire Line
- 3300 1200 3100 1200
-Wire Wire Line
- 3300 1300 3100 1300
-Wire Wire Line
- 3300 1400 3100 1400
-Wire Wire Line
- 3300 1700 3100 1700
-Wire Wire Line
- 3300 1800 3100 1800
-Text Label 3150 1000 0 50 ~ 0
-A4
-Text Label 3150 1100 0 50 ~ 0
-A5
-Text Label 3150 1200 0 50 ~ 0
-A6
-Text Label 3150 1300 0 50 ~ 0
-A7
-Text Label 3150 1400 0 50 ~ 0
-A15
-Text Label 3100 1700 0 50 ~ 0
-~MREQ
-Text Label 3100 1800 0 50 ~ 0
-~IOREQ
-Entry Wire Line
- 3000 1500 3100 1400
-Entry Wire Line
- 3000 1400 3100 1300
-Entry Wire Line
- 3000 1300 3100 1200
-Entry Wire Line
- 3000 1200 3100 1100
-Entry Wire Line
- 3000 1100 3100 1000
-Wire Wire Line
- 4400 1500 4700 1500
-Wire Wire Line
- 4400 1300 4700 1300
-Wire Wire Line
- 4400 1400 4700 1400
-Text Label 6500 1300 0 50 ~ 0
-~UARTEN
-Text Label 4400 1400 0 50 ~ 0
-~RAMEN
-Text Label 4400 1500 0 50 ~ 0
-~ROMEN
-Wire Wire Line
- 6800 4400 6650 4400
-Text Label 6650 4400 0 50 ~ 0
-~WR
-Entry Wire Line
- 6350 2900 6450 3000
-Entry Wire Line
- 6350 3000 6450 3100
-Entry Wire Line
- 6350 3100 6450 3200
-Entry Wire Line
- 6350 3200 6450 3300
-Entry Wire Line
- 6400 4300 6500 4200
-Entry Wire Line
- 6400 4200 6500 4100
-Entry Wire Line
- 6400 4100 6500 4000
-Entry Wire Line
- 6400 4000 6500 3900
-Entry Wire Line
- 6400 3900 6500 3800
-Entry Wire Line
- 6400 3800 6500 3700
-Entry Wire Line
- 6400 3700 6500 3600
-Entry Wire Line
- 6400 3600 6500 3500
-Wire Wire Line
- 6800 2700 6650 2700
-Text Label 6650 2700 0 50 ~ 0
-~RST
-Wire Bus Line
- 6400 4400 6100 4400
-Wire Bus Line
- 6100 4400 6100 5850
-Wire Bus Line
- 6100 5850 4550 5850
-Connection ~ 4550 5850
-$Comp
-L Device:Crystal_Small Y1
-U 1 1 5ED63565
-P 6550 5150
-F 0 "Y1" V 6600 5100 50 0000 R CNN
-F 1 "3.6864MHz" V 6700 5450 50 0000 R CNN
-F 2 "" H 6550 5150 50 0001 C CNN
-F 3 "~" H 6550 5150 50 0001 C CNN
- 1 6550 5150
- 0 -1 -1 0
-$EndComp
-Wire Wire Line
- 6550 5050 6800 5050
-$Comp
-L Device:C_Small C11
-U 1 1 5ED7A206
-P 6550 5400
-F 0 "C11" H 6750 5400 50 0000 R CNN
-F 1 "5pF" H 6750 5500 50 0000 R CNN
-F 2 "" H 6550 5400 50 0001 C CNN
-F 3 "~" H 6550 5400 50 0001 C CNN
- 1 6550 5400
- 1 0 0 1
-$EndComp
-$Comp
-L Device:C_Small C10
-U 1 1 5ED7B05B
-P 6350 5200
-F 0 "C10" H 6550 5200 50 0000 R CNN
-F 1 "15pF" H 6550 5300 50 0000 R CNN
-F 2 "" H 6350 5200 50 0001 C CNN
-F 3 "~" H 6350 5200 50 0001 C CNN
- 1 6350 5200
- -1 0 0 1
-$EndComp
-Wire Wire Line
- 6350 5100 6350 5050
-Wire Wire Line
- 6350 5050 6550 5050
-Wire Wire Line
- 6550 5300 6550 5250
-Connection ~ 6550 5250
-Wire Wire Line
- 7350 5600 6550 5600
-Wire Wire Line
- 6550 5600 6550 5500
-Wire Wire Line
- 6550 5600 6350 5600
-Wire Wire Line
- 6350 5600 6350 5300
-$Comp
-L Interface_UART:MAX232 U9
-U 1 1 5EDB13AC
-P 9300 3900
-F 0 "U9" H 9500 2850 50 0000 C CNN
-F 1 "MAX232" H 9300 4150 50 0000 C CNN
-F 2 "" H 9350 2850 50 0001 L CNN
-F 3 "http://www.ti.com/lit/ds/symlink/max232.pdf" H 9300 4000 50 0001 C CNN
- 1 9300 3900
- 1 0 0 -1
-$EndComp
-Wire Bus Line
- 4550 5850 4400 5850
-Wire Wire Line
- 7900 3500 8200 3500
-Text Label 7900 3500 0 50 ~ 0
-BANKSEL
-Text Label 7900 3400 0 50 ~ 0
-~RTSA
-Text Label 7900 2700 0 50 ~ 0
-~CTSA
-Text Label 7900 4300 0 50 ~ 0
-TXA
-Text Label 7900 4400 0 50 ~ 0
-RXA
-Wire Wire Line
- 8350 3400 8350 4200
-Wire Wire Line
- 8350 4200 8500 4200
-Wire Wire Line
- 7900 3400 8350 3400
-Wire Wire Line
- 8300 2700 8300 4600
-Wire Wire Line
- 8300 4600 8500 4600
-Wire Wire Line
- 7900 2700 8300 2700
-$Comp
-L power:GND #PWR026
-U 1 1 5EE75D69
-P 9300 5100
-F 0 "#PWR026" H 9300 4850 50 0001 C CNN
-F 1 "GND" H 9305 4927 50 0000 C CNN
-F 2 "" H 9300 5100 50 0001 C CNN
-F 3 "" H 9300 5100 50 0001 C CNN
- 1 9300 5100
- 1 0 0 -1
-$EndComp
-$Comp
-L power:VCC #PWR025
-U 1 1 5EE7620F
-P 9300 2700
-F 0 "#PWR025" H 9300 2550 50 0001 C CNN
-F 1 "VCC" H 9317 2873 50 0000 C CNN
-F 2 "" H 9300 2700 50 0001 C CNN
-F 3 "" H 9300 2700 50 0001 C CNN
- 1 9300 2700
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C12
-U 1 1 5EE7734D
-P 8500 3150
-F 0 "C12" H 8500 3250 50 0000 L CNN
-F 1 "0.1uF" H 8400 2950 50 0000 L CNN
-F 2 "" H 8538 3000 50 0001 C CNN
-F 3 "~" H 8500 3150 50 0001 C CNN
- 1 8500 3150
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C13
-U 1 1 5EEBDB7E
-P 10100 3150
-F 0 "C13" H 9950 3250 50 0000 L CNN
-F 1 "0.1uF" H 9850 3050 50 0000 L CNN
-F 2 "" H 10138 3000 50 0001 C CNN
-F 3 "~" H 10100 3150 50 0001 C CNN
- 1 10100 3150
- -1 0 0 -1
-$EndComp
-$Comp
-L Device:C C14
-U 1 1 5EEBE0D7
-P 10300 3500
-F 0 "C14" V 10250 3600 50 0000 L CNN
-F 1 "0.1uF" V 10250 3200 50 0000 L CNN
-F 2 "" H 10338 3350 50 0001 C CNN
-F 3 "~" H 10300 3500 50 0001 C CNN
- 1 10300 3500
- 0 -1 1 0
-$EndComp
-Wire Wire Line
- 10150 3500 10100 3500
-Wire Wire Line
- 10100 3800 10150 3800
-$Comp
-L Device:C C15
-U 1 1 5EEC6839
-P 10300 3800
-F 0 "C15" V 10250 3900 50 0000 L CNN
-F 1 "0.1uF" V 10250 3500 50 0000 L CNN
-F 2 "" H 10338 3650 50 0001 C CNN
-F 3 "~" H 10300 3800 50 0001 C CNN
- 1 10300 3800
- 0 -1 1 0
-$EndComp
-$Comp
-L power:VCC #PWR029
-U 1 1 5EEEF5D1
-P 10650 3400
-F 0 "#PWR029" H 10650 3250 50 0001 C CNN
-F 1 "VCC" H 10667 3573 50 0000 C CNN
-F 2 "" H 10650 3400 50 0001 C CNN
-F 3 "" H 10650 3400 50 0001 C CNN
- 1 10650 3400
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 10650 3400 10650 3500
-Wire Wire Line
- 10650 3500 10450 3500
-$Comp
-L power:GND #PWR027
-U 1 1 5EEF812A
-P 10550 3850
-F 0 "#PWR027" H 10550 3600 50 0001 C CNN
-F 1 "GND" H 10555 3677 50 0000 C CNN
-F 2 "" H 10550 3850 50 0001 C CNN
-F 3 "" H 10550 3850 50 0001 C CNN
- 1 10550 3850
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 10450 3800 10550 3800
-Wire Wire Line
- 10550 3800 10550 3850
-Wire Wire Line
- 7900 4300 8250 4300
-Wire Wire Line
- 7900 4400 8500 4400
-Wire Wire Line
- 8250 4300 8250 4000
-Wire Wire Line
- 8250 4000 8500 4000
-Text Label 8400 4000 0 50 ~ 0
-TXA
-Text Label 8350 4600 0 50 ~ 0
-~CTSA
-Text Label 8350 4200 0 50 ~ 0
-~RTSA
-Text Label 8350 4400 0 50 ~ 0
-RXA
-$Comp
-L Connector:Conn_01x03_Male J1
-U 1 1 5F03FE41
-P 8550 4850
-F 0 "J1" H 8600 4700 50 0000 R CNN
-F 1 "SERB" H 8650 4600 50 0000 R CNN
-F 2 "" H 8550 4850 50 0001 C CNN
-F 3 "~" H 8550 4850 50 0001 C CNN
- 1 8550 4850
- -1 0 0 -1
-$EndComp
-Text Label 8000 4750 0 50 ~ 0
-RXDB
-Text Label 8000 4850 0 50 ~ 0
-TXDB
-Wire Wire Line
- 7900 4650 7900 4850
-Wire Wire Line
- 7900 4850 8350 4850
-Wire Wire Line
- 7900 4550 7950 4550
-Wire Wire Line
- 7950 4550 7950 4750
-Wire Wire Line
- 7950 4750 8350 4750
-$Comp
-L power:GND #PWR024
-U 1 1 5F09F89E
-P 8300 4950
-F 0 "#PWR024" H 8300 4700 50 0001 C CNN
-F 1 "GND" H 8305 4777 50 0000 C CNN
-F 2 "" H 8300 4950 50 0001 C CNN
-F 3 "" H 8300 4950 50 0001 C CNN
- 1 8300 4950
- 1 0 0 -1
-$EndComp
-$Comp
-L Connector:DB9_Male J2
-U 1 1 5F10B0BC
-P 10850 4600
-F 0 "J2" H 10800 5150 50 0000 L CNN
-F 1 "SERA" H 10750 4050 50 0000 L CNN
-F 2 "" H 10850 4600 50 0001 C CNN
-F 3 " ~" H 10850 4600 50 0001 C CNN
- 1 10850 4600
- 1 0 0 1
-$EndComp
-Wire Wire Line
- 10100 4000 10250 4000
-Wire Wire Line
- 10100 4400 10550 4400
-Wire Wire Line
- 10250 4000 10250 4600
-Wire Wire Line
- 10250 4600 10550 4600
-Wire Wire Line
- 10100 4200 10200 4200
-Wire Wire Line
- 10200 4200 10200 4500
-Wire Wire Line
- 10200 4500 10550 4500
-Wire Wire Line
- 10100 4600 10150 4600
-Wire Wire Line
- 10150 4600 10150 4700
-Wire Wire Line
- 10150 4700 10550 4700
-$Comp
-L power:GND #PWR028
-U 1 1 5F1878FB
-P 10550 5050
-F 0 "#PWR028" H 10550 4800 50 0001 C CNN
-F 1 "GND" H 10555 4877 50 0000 C CNN
-F 2 "" H 10550 5050 50 0001 C CNN
-F 3 "" H 10550 5050 50 0001 C CNN
- 1 10550 5050
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 10550 5000 10550 5050
-NoConn ~ 10550 4200
-NoConn ~ 10550 4300
-NoConn ~ 10550 4800
-NoConn ~ 10550 4900
-Text Label 10350 4400 0 50 ~ 0
-SRTX
-Text Label 10350 4500 0 50 ~ 0
-SRTS
-Text Label 10350 4600 0 50 ~ 0
-STXA
-Text Label 10350 4700 0 50 ~ 0
-SCTS
-Wire Bus Line
- 3000 5850 4550 5850
-Connection ~ 6550 5050
-Connection ~ 6550 5600
-Text Label 6600 5250 0 50 ~ 0
-UCLK
-Wire Wire Line
- 6550 5250 6800 5250
-Connection ~ 7350 5600
-Wire Wire Line
- 1300 4050 1000 4050
-Text Label 1050 4050 0 50 ~ 0
-~WAIT
-$Comp
-L Device:R R3
-U 1 1 5F385448
-P 850 4050
-F 0 "R3" V 950 4050 50 0000 L CNN
-F 1 "4.7k" V 850 3950 50 0000 L CNN
-F 2 "" V 780 4050 50 0001 C CNN
-F 3 "~" H 850 4050 50 0001 C CNN
- 1 850 4050
- 0 -1 -1 0
-$EndComp
-Text Label 1150 3150 0 50 ~ 0
-CLK
-Text Label 1050 3550 0 50 ~ 0
-~INT
-Wire Wire Line
- 1300 3550 1000 3550
-$Comp
-L power:VCC #PWR01
-U 1 1 5F3DA2B2
-P 700 3350
-F 0 "#PWR01" H 700 3200 50 0001 C CNN
-F 1 "VCC" H 700 3500 50 0000 C CNN
-F 2 "" H 700 3350 50 0001 C CNN
-F 3 "" H 700 3350 50 0001 C CNN
- 1 700 3350
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:R R2
-U 1 1 5F3D9F65
-P 850 3550
-F 0 "R2" V 950 3550 50 0000 L CNN
-F 1 "4.7k" V 850 3450 50 0000 L CNN
-F 2 "" V 780 3550 50 0001 C CNN
-F 3 "~" H 850 3550 50 0001 C CNN
- 1 850 3550
- 0 -1 1 0
-$EndComp
-Wire Wire Line
- 700 3350 700 3450
-Connection ~ 700 3550
-Wire Wire Line
- 700 3550 700 4050
-$Comp
-L Device:C C2
-U 1 1 5F442E26
-P 1850 7150
-F 0 "C2" H 1900 7250 50 0000 L CNN
-F 1 "0.1uF" H 1900 7050 50 0000 L CNN
-F 2 "" H 1888 7000 50 0001 C CNN
-F 3 "~" H 1850 7150 50 0001 C CNN
- 1 1850 7150
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C3
-U 1 1 5F444327
-P 2150 7150
-F 0 "C3" H 2200 7250 50 0000 L CNN
-F 1 "0.1uF" H 2200 7050 50 0000 L CNN
-F 2 "" H 2188 7000 50 0001 C CNN
-F 3 "~" H 2150 7150 50 0001 C CNN
- 1 2150 7150
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C4
-U 1 1 5F444547
-P 2450 7150
-F 0 "C4" H 2500 7250 50 0000 L CNN
-F 1 "0.1uF" H 2500 7050 50 0000 L CNN
-F 2 "" H 2488 7000 50 0001 C CNN
-F 3 "~" H 2450 7150 50 0001 C CNN
- 1 2450 7150
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C6
-U 1 1 5F444841
-P 2750 7150
-F 0 "C6" H 2800 7250 50 0000 L CNN
-F 1 "0.1uF" H 2800 7050 50 0000 L CNN
-F 2 "" H 2788 7000 50 0001 C CNN
-F 3 "~" H 2750 7150 50 0001 C CNN
- 1 2750 7150
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C7
-U 1 1 5F444B0C
-P 3050 7150
-F 0 "C7" H 3100 7250 50 0000 L CNN
-F 1 "0.1uF" H 3100 7050 50 0000 L CNN
-F 2 "" H 3088 7000 50 0001 C CNN
-F 3 "~" H 3050 7150 50 0001 C CNN
- 1 3050 7150
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C8
-U 1 1 5F444DC1
-P 3350 7150
-F 0 "C8" H 3400 7250 50 0000 L CNN
-F 1 "0.1uF" H 3400 7050 50 0000 L CNN
-F 2 "" H 3388 7000 50 0001 C CNN
-F 3 "~" H 3350 7150 50 0001 C CNN
- 1 3350 7150
- 1 0 0 -1
-$EndComp
-$Comp
-L power:GND #PWR010
-U 1 1 5F4451AA
-P 2600 7300
-F 0 "#PWR010" H 2600 7050 50 0001 C CNN
-F 1 "GND" H 2605 7127 50 0000 C CNN
-F 2 "" H 2600 7300 50 0001 C CNN
-F 3 "" H 2600 7300 50 0001 C CNN
- 1 2600 7300
- 1 0 0 -1
-$EndComp
-$Comp
-L power:VCC #PWR09
-U 1 1 5F4467BC
-P 2600 7000
-F 0 "#PWR09" H 2600 6850 50 0001 C CNN
-F 1 "VCC" H 2600 7150 50 0000 C CNN
-F 2 "" H 2600 7000 50 0001 C CNN
-F 3 "" H 2600 7000 50 0001 C CNN
- 1 2600 7000
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 1850 7000 2150 7000
-Connection ~ 2150 7000
-Wire Wire Line
- 2150 7000 2450 7000
-Connection ~ 2450 7000
-Wire Wire Line
- 2450 7000 2600 7000
-Connection ~ 2600 7000
-Wire Wire Line
- 2600 7000 2750 7000
-Connection ~ 2750 7000
-Wire Wire Line
- 2750 7000 3050 7000
-Connection ~ 3050 7000
-Wire Wire Line
- 3050 7000 3350 7000
-Wire Wire Line
- 1850 7300 2150 7300
-Connection ~ 2150 7300
-Wire Wire Line
- 2150 7300 2450 7300
-Connection ~ 2450 7300
-Wire Wire Line
- 2450 7300 2600 7300
-Connection ~ 2600 7300
-Wire Wire Line
- 2600 7300 2750 7300
-Connection ~ 2750 7300
-Wire Wire Line
- 2750 7300 3050 7300
-Connection ~ 3050 7300
-Wire Wire Line
- 3050 7300 3350 7300
-$Comp
-L Device:R R1
-U 1 1 5F463EA2
-P 850 3450
-F 0 "R1" V 950 3450 50 0000 L CNN
-F 1 "4.7k" V 850 3350 50 0000 L CNN
-F 2 "" V 780 3450 50 0001 C CNN
-F 3 "~" H 850 3450 50 0001 C CNN
- 1 850 3450
- 0 -1 -1 0
-$EndComp
-Connection ~ 700 3450
-Wire Wire Line
- 700 3450 700 3550
-Wire Wire Line
- 1000 3450 1300 3450
-Text Label 1050 3450 0 50 ~ 0
-~NMI
-$Comp
-L 74xx:74LS05 U4
-U 2 1 5F4A99C1
-P 7300 6200
-F 0 "U4" H 7300 6050 50 0000 C CNN
-F 1 "74LS05" H 7400 6350 50 0000 C CNN
-F 2 "" H 7300 6200 50 0001 C CNN
-F 3 "http://www.ti.com/lit/gpn/sn74LS05" H 7300 6200 50 0001 C CNN
- 2 7300 6200
- -1 0 0 1
-$EndComp
-$Comp
-L Diode:1N4148 D1
-U 1 1 5F4AD646
-P 8050 6200
-F 0 "D1" H 8050 5984 50 0000 C CNN
-F 1 "1N4148" H 8050 6075 50 0000 C CNN
-F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 8050 6025 50 0001 C CNN
-F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 8050 6200 50 0001 C CNN
- 1 8050 6200
- -1 0 0 1
-$EndComp
-$Comp
-L Device:R R8
-U 1 1 5F4AE323
-P 7750 6050
-F 0 "R8" H 7680 6004 50 0000 R CNN
-F 1 "4k7" H 7680 6095 50 0000 R CNN
-F 2 "" V 7680 6050 50 0001 C CNN
-F 3 "~" H 7750 6050 50 0001 C CNN
- 1 7750 6050
- 1 0 0 1
-$EndComp
-$Comp
-L power:VCC #PWR023
-U 1 1 5F4B4193
-P 7750 5900
-F 0 "#PWR023" H 7750 5750 50 0001 C CNN
-F 1 "VCC" H 7767 6073 50 0000 C CNN
-F 2 "" H 7750 5900 50 0001 C CNN
-F 3 "" H 7750 5900 50 0001 C CNN
- 1 7750 5900
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 7900 5250 7900 6200
-Connection ~ 7900 6200
-Wire Wire Line
- 8200 6200 8500 6200
-Text Label 8200 6200 0 50 ~ 0
-UARTEN
-Wire Wire Line
- 7600 6200 7750 6200
-Connection ~ 7750 6200
-Wire Wire Line
- 7750 6200 7900 6200
-Wire Wire Line
- 7000 6200 850 6200
-Wire Wire Line
- 850 6200 850 4250
-Wire Wire Line
- 850 4250 1000 4250
-Wire Wire Line
- 1000 4250 1000 4050
-Connection ~ 1000 4050
-Wire Wire Line
- 4400 1200 4700 1200
-Text Label 4400 1200 0 50 ~ 0
-UARTEN
-Wire Wire Line
- 7900 5150 8050 5150
-Text Label 7900 5150 0 50 ~ 0
-~INT
-Wire Wire Line
- 8300 4950 8350 4950
-Text Notes 3950 2300 0 50 ~ 0
-GAL16V8: glue.pld
-$Comp
-L power:VCC #PWR04
-U 1 1 5F6A583C
-P 1300 5150
-F 0 "#PWR04" H 1300 5000 50 0001 C CNN
-F 1 "VCC" H 1317 5323 50 0000 C CNN
-F 2 "" H 1300 5150 50 0001 C CNN
-F 3 "" H 1300 5150 50 0001 C CNN
- 1 1300 5150
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 3300 1600 3100 1600
-Text Label 3200 1600 0 50 ~ 0
-~M1
-Wire Wire Line
- 3300 1900 3100 1900
-Text Label 3100 1900 0 50 ~ 0
-~RFSH
-Wire Wire Line
- 4400 1700 4700 1700
-Text Label 4400 1700 0 50 ~ 0
-~IACK
-Wire Wire Line
- 6800 4700 6600 4700
-Text Label 6600 4700 0 50 ~ 0
-~IACK
-$Comp
-L 74xx:74HC14 U1
-U 6 1 5F7B3414
-P 850 2400
-F 0 "U1" V 650 2400 50 0000 L CNN
-F 1 "74HC14" H 850 2250 50 0000 L CNN
-F 2 "" H 850 2400 50 0001 C CNN
-F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 850 2400 50 0001 C CNN
- 6 850 2400
- 0 1 1 0
-$EndComp
-Wire Wire Line
- 850 2700 850 3150
-Wire Wire Line
- 850 3150 1300 3150
-Wire Wire Line
- 850 2100 850 1850
-Text Label 850 2050 1 50 ~ 0
-UCLK
-Wire Wire Line
- 1300 1650 1350 1650
-$Comp
-L power:VCC #PWR03
-U 1 1 5F97FBA6
-P 1300 1650
-F 0 "#PWR03" H 1300 1500 50 0001 C CNN
-F 1 "VCC" H 1300 1800 50 0000 C CNN
-F 2 "" H 1300 1650 50 0001 C CNN
-F 3 "" H 1300 1650 50 0001 C CNN
- 1 1300 1650
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 750 1350 750 1250
-$Comp
-L power:GND #PWR02
-U 1 1 5F96EC3C
-P 750 1350
-F 0 "#PWR02" H 750 1100 50 0001 C CNN
-F 1 "GND" H 755 1177 50 0000 C CNN
-F 2 "" H 750 1350 50 0001 C CNN
-F 3 "" H 750 1350 50 0001 C CNN
- 1 750 1350
- 1 0 0 -1
-$EndComp
-Connection ~ 1200 1250
-Wire Wire Line
- 1150 1250 1200 1250
-$Comp
-L Switch:SW_Push SW1
-U 1 1 5F933400
-P 950 1250
-F 0 "SW1" H 950 1535 50 0000 C CNN
-F 1 "RESET" H 950 1444 50 0000 C CNN
-F 2 "" H 950 1450 50 0001 C CNN
-F 3 "~" H 950 1450 50 0001 C CNN
- 1 950 1250
- 1 0 0 -1
-$EndComp
-Connection ~ 1850 1050
-Wire Wire Line
- 1500 1050 1850 1050
-Wire Wire Line
- 1500 950 1500 1050
-Wire Wire Line
- 1200 950 1500 950
-Wire Wire Line
- 1200 1250 1350 1250
-$Comp
-L Device:R R5
-U 1 1 5F901EA0
-P 1200 1100
-F 0 "R5" H 1270 1146 50 0000 L CNN
-F 1 "1M" V 1200 1050 50 0000 L CNN
-F 2 "" V 1130 1100 50 0001 C CNN
-F 3 "~" H 1200 1100 50 0001 C CNN
- 1 1200 1100
- 1 0 0 -1
-$EndComp
-NoConn ~ 1350 1450
-$Comp
-L power:VCC #PWR011
-U 1 1 5F8CF8A4
-P 2700 1150
-F 0 "#PWR011" H 2700 1000 50 0001 C CNN
-F 1 "VCC" H 2717 1323 50 0000 C CNN
-F 2 "" H 2700 1150 50 0001 C CNN
-F 3 "" H 2700 1150 50 0001 C CNN
- 1 2700 1150
- 1 0 0 -1
-$EndComp
-Text Label 2350 1250 0 50 ~ 0
-RST
-Wire Wire Line
- 2350 1250 2550 1250
-Wire Wire Line
- 2700 1850 1850 1850
-Wire Wire Line
- 2350 1650 2700 1650
-Connection ~ 2700 1450
-Wire Wire Line
- 2700 1450 2700 1650
-$Comp
-L Device:C_Small C5
-U 1 1 5F880397
-P 2700 1750
-F 0 "C5" H 2609 1704 50 0000 R CNN
-F 1 "0.1uF" H 2609 1795 50 0000 R CNN
-F 2 "" H 2700 1750 50 0001 C CNN
-F 3 "~" H 2700 1750 50 0001 C CNN
- 1 2700 1750
- 1 0 0 1
-$EndComp
-Wire Wire Line
- 2350 1450 2700 1450
-$Comp
-L Device:R R6
-U 1 1 5F8611FE
-P 2700 1300
-F 0 "R6" H 2750 1350 50 0000 L CNN
-F 1 "9.1k" V 2700 1200 50 0000 L CNN
-F 2 "" V 2630 1300 50 0001 C CNN
-F 3 "~" H 2700 1300 50 0001 C CNN
- 1 2700 1300
- 1 0 0 -1
-$EndComp
-$Comp
-L power:VCC #PWR05
-U 1 1 5F860836
-P 1850 1050
-F 0 "#PWR05" H 1850 900 50 0001 C CNN
-F 1 "VCC" H 1867 1223 50 0000 C CNN
-F 2 "" H 1850 1050 50 0001 C CNN
-F 3 "" H 1850 1050 50 0001 C CNN
- 1 1850 1050
- 1 0 0 -1
-$EndComp
-$Comp
-L power:GND #PWR06
-U 1 1 5F860553
-P 1850 1850
-F 0 "#PWR06" H 1850 1600 50 0001 C CNN
-F 1 "GND" H 1855 1677 50 0000 C CNN
-F 2 "" H 1850 1850 50 0001 C CNN
-F 3 "" H 1850 1850 50 0001 C CNN
- 1 1850 1850
- 1 0 0 -1
-$EndComp
-$Comp
-L Timer:LM555 U2
-U 1 1 5F85DCB5
-P 1850 1450
-F 0 "U2" H 2000 1800 50 0000 C CNN
-F 1 "LM555" H 1850 1450 50 0000 C CNN
-F 2 "" H 1850 1450 50 0001 C CNN
-F 3 "http://www.ti.com/lit/ds/symlink/lm555.pdf" H 1850 1450 50 0001 C CNN
- 1 1850 1450
- 1 0 0 -1
-$EndComp
-$Comp
-L 74xx:74LS05 U4
-U 1 1 5F9CB042
-P 2450 800
-F 0 "U4" H 2450 650 50 0000 C CNN
-F 1 "74LS05" H 2550 950 50 0000 C CNN
-F 2 "" H 2450 800 50 0001 C CNN
-F 3 "http://www.ti.com/lit/gpn/sn74LS05" H 2450 800 50 0001 C CNN
- 1 2450 800
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 2150 800 2150 1050
-Wire Wire Line
- 2150 1050 2550 1050
-Wire Wire Line
- 2550 1050 2550 1250
-Text Label 2850 800 0 50 ~ 0
-~RST
-$Comp
-L Device:R R4
-U 1 1 5FA0761C
-P 1050 2700
-F 0 "R4" H 1120 2746 50 0000 L CNN
-F 1 "4.7k" V 1050 2600 50 0000 L CNN
-F 2 "" V 980 2700 50 0001 C CNN
-F 3 "~" H 1050 2700 50 0001 C CNN
- 1 1050 2700
- 1 0 0 -1
-$EndComp
-Text Notes 1350 700 0 50 ~ 0
-Power-on reset
-Wire Wire Line
- 2750 800 3000 800
-Wire Wire Line
- 1050 2850 1300 2850
-Wire Wire Line
- 1050 2550 2000 2550
-Connection ~ 2000 2550
-Connection ~ 2700 1650
-Connection ~ 1850 1850
-$Comp
-L Device:C_Small C1
-U 1 1 5FC80F1C
-P 1200 1700
-F 0 "C1" H 1109 1654 50 0000 R CNN
-F 1 "0.1uF" H 1109 1745 50 0000 R CNN
-F 2 "" H 1200 1700 50 0001 C CNN
-F 3 "~" H 1200 1700 50 0001 C CNN
- 1 1200 1700
- 1 0 0 1
-$EndComp
-Wire Wire Line
- 1200 1800 1200 1850
-Wire Wire Line
- 1200 1850 1850 1850
-Wire Wire Line
- 1200 1600 1200 1250
-NoConn ~ 1300 5250
-NoConn ~ 1300 4150
-Wire Wire Line
- 1300 3850 1100 3850
-Text Label 1200 3850 0 50 ~ 0
-~M1
-Wire Wire Line
- 1300 3950 1100 3950
-Text Label 1100 3950 0 50 ~ 0
-~RFSH
-Connection ~ 4700 2600
-Wire Bus Line
- 4600 2600 4700 2600
-Wire Bus Line
- 4700 2600 6350 2600
-Wire Bus Line
- 3150 2600 4700 2600
-Connection ~ 3000 2600
-Wire Wire Line
- 3300 2000 3100 2000
-Wire Wire Line
- 3300 2100 3100 2100
-Text Label 3200 2000 0 50 ~ 0
-~RD
-Text Label 3200 2100 0 50 ~ 0
-~WR
-$Comp
-L 74xx:74HC14 U1
-U 5 1 5FEF66B9
-P 5600 1300
-F 0 "U1" H 5550 1450 50 0000 L CNN
-F 1 "74HC14" H 5550 1150 50 0000 L CNN
-F 2 "" H 5600 1300 50 0001 C CNN
-F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 5600 1300 50 0001 C CNN
- 5 5600 1300
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C_Small C9
-U 1 1 5FEF828C
-P 5100 1100
-F 0 "C9" H 5008 1054 50 0000 R CNN
-F 1 "0.1uF" H 5008 1145 50 0000 R CNN
-F 2 "" H 5100 1100 50 0001 C CNN
-F 3 "~" H 5100 1100 50 0001 C CNN
- 1 5100 1100
- -1 0 0 1
-$EndComp
-$Comp
-L Device:R R7
-U 1 1 5FF0FBDF
-P 4850 1300
-F 0 "R7" V 4750 1250 50 0000 L CNN
-F 1 "120R" V 4850 1200 50 0000 L CNN
-F 2 "" V 4780 1300 50 0001 C CNN
-F 3 "~" H 4850 1300 50 0001 C CNN
- 1 4850 1300
- 0 1 1 0
-$EndComp
-$Comp
-L power:VCC #PWR018
-U 1 1 5FF26567
-P 5100 1000
-F 0 "#PWR018" H 5100 850 50 0001 C CNN
-F 1 "VCC" H 5117 1173 50 0000 C CNN
-F 2 "" H 5100 1000 50 0001 C CNN
-F 3 "" H 5100 1000 50 0001 C CNN
- 1 5100 1000
- 1 0 0 -1
-$EndComp
-$Comp
-L 74xx:74HC14 U1
-U 4 1 5FF485F0
-P 6200 1300
-F 0 "U1" H 6150 1450 50 0000 L CNN
-F 1 "74HC14" H 6150 1150 50 0000 L CNN
-F 2 "" H 6200 1300 50 0001 C CNN
-F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 6200 1300 50 0001 C CNN
- 4 6200 1300
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 6500 1300 6800 1300
-Wire Wire Line
- 5000 1300 5100 1300
-Wire Wire Line
- 5100 1200 5100 1300
-Wire Bus Line
- 6350 2600 6350 3200
-Wire Bus Line
- 3000 1100 3000 2600
-Wire Bus Line
- 6400 3400 6400 4400
-Wire Bus Line
- 4550 3600 4550 5850
-Wire Bus Line
- 3000 4650 3000 5850
-Wire Bus Line
- 3150 2600 3150 4800
-Wire Bus Line
- 4700 2600 4700 4600
-Wire Bus Line
- 3000 2600 3000 4250
-Connection ~ 5100 1300
-Wire Wire Line
- 5100 1300 5300 1300
-Text Notes 5350 950 0 50 ~ 0
-Delay the UART ~CS~ for a few ns to bring the\ntiming between R/~W~ and ~CS~ within spec\n(this might have been a red herring and not necessary)
-$EndSCHEMATC
projects / z80comp2 / commitdiff