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Computer Group Literature Center Web Site
Interconnect Signals
3
J3 and J4 connectors
Connectors J3 and J4 on the MVME712M module and connector J3 on the
P2 adapter board are 50-pin connectors that are the same pin-for-pin. Each
pin connection, signal mnemonic, and signal characteristic for these
connectors is listed in the following table.
Table 3-5. Connectors J3 and J4 interconnect signals
Pin
Number
Signal
Mnemonic
Signal Name and Description
1
GND
GROUND
2
DB00*
DATA bus (bit 0) - least significant bit and the lowest
priority during the arbitration phase.
3
GND
GROUND
4
DB01*
DATA bus (bit 1)
5
GND
GROUND
6
DB02*
DATA bus (bit 2)
7
GND
GROUND
8
DB03*
DATA bus (bit 3)
9
GND
GROUND
10
DB04*
DATA bus (bit 4)
11
GND
GROUND
12
DB05*
DATA bus (bit 5)
13
GND
GROUND
14
DB06*
DATA bus (bit 6)
15
GND
GROUND
16
DB07*
DATA bus (bit 7) - most significant bit and the highest
priority during the arbitration phase.
17
GND
GROUND
18
DBP*
DATA bus (parity) - data parity is odd. Use of parity is
a system option. Parity is not valid during the
arbitration phase.
19-24
GND
GROUND
25
Not used.
26
TERMPWR
TERMINATOR POWER
