user manual

MVME712M-Compatible Versions
http://www.motorola.com/computer/literature 4-19
4
MVME712M-Compatible Versions
The following tables summarize the pin assignments of connectors that are
specific to MVME2603/2604 modules configured for use with
MVME712M transition modules.
VMEbus Connector P2
Two 160-pin connectors (P1 and P2) supply the interface between the base
board and the VMEbus. P1 provides power and VME signals for 24-bit
addressing and 16-bit data. Its pin assignments are set by the VMEbus
specification. P2 rows A, C, Z, and D provide power and interface signals
to the MVME712M transition module. P2 row B supplies the
MVME2603/2604 with power, with the upper eight VMEbus address
lines, and with an additional 16 VMEbus data lines. The pin assignments
for P2 are listed in the following table.
25 Not Used VA6 VIRQ6∗ VA13 Not Used 25
26 GND VA5 VIRQ5
∗ VA12 Not Used 26
27 Not Used VA4 VIRQ4
∗ VA11 Not Used 27
28 GND VA3 VIRQ3
∗ VA10 Not Used 28
29 Not Used VA2 VIRQ2
∗ VA9 Not Use d 29
30 GND VA1 VIRQ1
∗ VA8 Not Use d 30
31 Not Used –12V +5VSTDBY +12V GND 31
32 GND +5V +5V +5V Not Used 32
Table 4-10. VMEbus Connector P2 (MVME712M I/O Mode)
Row Z Row A Row B Row C Row D
1SDB8
∗ SDB0∗ +5V P2C1 PMCIO0 1
2 GND SDB1
∗ GND P2C2 PMCIO1 2
3SDB9
∗ SDB2∗ RETRY∗ P2C3 PMCIO2 3
4 GND SDB3
∗ VA24 P2C4 PMCIO3 4
Table 4-9. VMEbus Connector P1 (Continued)