LB-BKOUT-01

Features

• Breakout all bus lines
• PWR/GND bus down the middle

NOP Codes

• Z80 = 0x00

Connectors

J8 - Backplane Connector

Backplane Pinout

Pin	LBMEM	LBZ80	LB65C816	LBLOGIC
1	VCC	VCC	VCC	VCC
2	VCC	VCC	VCC	VCC
3	CPUA22	CPUA22	CPUA22	P2[6]
4	CPUA23	CPUA23	CPUA23	P2[7]
5	CPUA20	CPUA20	CPUA20	P2[4]
6	CPUA21	CPUA21	CPUA21	P2[5]
7	CPUA18	CPUA18	CPUA18	P2[2]
8	CPUA19	CPUA19	CPUA19	P2[3]
9	CPUA16	CPUA16	CPUA16	P2[0]
10	CPUA17	CPUA17	CPUA17	P2[1]
11	CPUA14	CPUA14	CPUA14	P4[6]
12	CPUA15	CPUA15	CPUA15	P4[7]
13	CPUA12	CPUA12	CPUA12	P4[4]
14	CPUA13	CPUA13	CPUA13	P4[5]
15	CPUA10	CPUA10	CPUA10	P4[2]
16	CPUA11	CPUA11	CPUA11	P4[3]
17	CPUA08	CPUA8	CPUA8	P4[0]
18	CPUA09	CPUA9	CPUA9	P4[1]
19	CPUA06	CPUA6	CPUA6	P0[6]
20	CPUA07	CPUA7	CPUA7	P0[7]
21	CPUA04	CPUA4	CPUA4	P0[4]
22	CPUA05	CPUA5	CPUA5	P0[5]
23	CPUA02	CPUA2	CPUA2	P0[2]
24	CPUA03	CPUA3	CPUA3	P0[3]
25	CPUA00	CPUA0	CPUA0	P0[0]
26	CPUA01	CPUA1	CPUA1	P0[1]
27	CPUD0	CPUD0	CPUD0	P12[0]
28	CPUD7	CPUD7	CPUD7	P12[7]
29	CPUD1	CPUD1	CPUD1	P12[1]
30	CPUD6	CPUD6	CPUD6	P12[6]
31	CPUD2	CPUD2	CPUD2	P12[2]
32	CPUD5	CPUD5	CPUD5	P12[5]
33	CPUD3	CPUD3	CPUD3	P12[3]
34	CPUD4	CPUD4	CPUD4	P12[4]
35	MEMRD*	N/A	N/A	P3[7]
36	RAMSEL*	N/A	N/A	P3[6]
37	IOCS*	N/A	N/A	P3[4]
38	ROMSEL*	N/A	N/A	P3[5]
39	GND	GND	GND	GND
40	GND	GND	GND	GND
41	N/A	CPUCLK	CPUCLK	P3[3]
42	N/A	RFSH	VPA	P3[2]
43	N/A	INT*	IRQB*	P3[1]
44	N/A	M1*	VPB	P3[0]
45	N/A	NMI*	NMIB*	P5[7]
46	N/A	CPURST*	CPURESB*	P5[6]
47	N/A	HALT*	ABORT*	P5[5]
48	N/A	BUSRQ*	MLB	P5[4]
49	N/A	MREQ*	VDA	P1[7]
50	N/A	WAIT*	RDY	P1[6]
51	N/A	IORQ*	IRQB*	P1[5]
52	N/A	BUSACK*	CPUE	P1[4]
53	N/A	CPURD*	CPUMX	P5[3]
54	N/A	CPUWR*	RWB	P5[2]
55	N/A	N/A	N/A	N/A
56	N/A	N/A	N/A	N/A
57	N/A	N/A	N/A	N/A
58	N/A	N/A	N/A	N/A
59	N/A	N/A	N/A	N/A
60	N/A	N/A	N/A	N/A
61	N/A	N/A	N/A	N/A
62	N/A	N/A	N/A	N/A
63	N/A	N/A	N/A	N/A
64	N/A	N/A	N/A	N/A

J1-J3 Lower Pins

J5-J7 Upper Pins

J4 - Conter Power Pins

Mechanicals