Motorola MVME712B User Manual
Page 43
Support Information
3-10
MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual
3
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 signiÞcant 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
27-31
GND
GROUND
32
ATN*
ATTENTION - signal driven by the initiator.
Indicates the attention condition.
33-35
GND
GROUND
36
BSY*
BUS BUSY - OR-tied signal that indicates that
the bus is being used.
37
GND
GROUND
38
ACK*
ACKNOWLEDGE - signal driven by an initiator
to indicate an acknowledgment for a REQ/ACK
data transfer handshake.
39
GND
GROUND
40
RST*
RESET - OR-tied signal that indicates the RESET
condition.
41
GND
GROUND
42
MSG*
MESSAGE - signal driven by the target during
the message phase.
43
GND
GROUND
44
SEL*
SELECT - signal used by an initiator to select a
target or by a target to reselect an initiator.
45
GND
GROUND
Table 3-6. Connector J3 Interconnect Signals (LCP2 Adapter) (Continued)
Pin
Number
Signal
Mnemonic
Signal Name and Description