Hitachi 902 - Connector Table; VME Bus Connector Signal Table (J1)

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Connector Table
VME Bus Connector Signal Table (J1)
J1/P1 (VME BUS)
No. A B C
1 VD0 - P BBSY - N VD8 - P
2 VD1 - P BCLR - N VD9 - P
3 VD2 - P VACFAIL - N VD10 - P
4 VD3 - P (BG0 IN - N) VD11 -P
5 VD4 - P (BG0 OUT - N) VD12 - P
6 VD5 - P (BG1 IN - N) VD13 - P
7 VD6 - P (BG1 OUT - N) VD14 - P
8 VD7 - P (BG2 IN - N) VD15 - P
9 GND (BG2 OUT - N) GND
10 SYSCLK (BG3 IN - N) VSYSFAIL - N
11 GND BGOUT 3 - N BERRON
12 DS1 - N (BREQ0 - N) SYSRESET - N
13 DS0 - N (BREQ1 - N) LWORD - N
14 WRITE - N (BREQ2 - N) AM5 - P
15 GND BREQ3 - N VA23 - P
16 DTACK - N AM0 - P VA22 - P
17 GND AM1 - P VA21 - P
18 AS - N AM2 - P VA20 - P
19 GND AM3 - P VA19 - P
20 IACK - N GND VA18 - P
21 IACKIN - N (SERCLK (1)) VA17 - P
22 IACKOUT - N (SERDAT (1)) VA16 - P
23 AM4 - P GND VA15 - P
24 VA7 - P
(IRQ7 *)
VA14 - P
25 VA6 - P
IRQ6 *
VA13 - P
26 VA5 - P
(IRQ5 *)
VA12 - P
27 VA4 - P
IRQ4 *
VA11 - P
28 VA3 - P
IRQ3 *
VA10 - P
29 VA2-P
(IRQ2 *)
VA9 -P
30 VA1-P
(IRQ1 *)
VA8 - P
31 -12 V +5 V STDBY +12 V
32 +5 V +5 V +5 V
( ) : VME standard, not used on this board, NC
* : Negative polarity