Motorola MVME712AM 用户手册
Support Information
3-4
MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual
3
Connector J2 Interconnect Signals (LCP2 Adapter)
Connector J2 on the LCP2 adapter is a 64-pin connector. Each pin connection,
signal mnemonic, and signal characteristic for the connector is listed in
signal mnemonic, and signal characteristic for the connector is listed in
.
Table 3-4. Connector J2 Interconnect Signals (LCP2 Adapter)
Pin
Number
Signal
Mnemonic
Signal Name and Description
1
C+
COLLISION + (Input) (Ethernet) - a signal to
indicate that multiple stations are contending
for access to the transmission medium.
indicate that multiple stations are contending
for access to the transmission medium.
2
C-
COLLISION - (Input) (Ethernet) - part of a
differential pair.
differential pair.
3
T+
TRANSMIT + (Output) (Ethernet) - this line is
intended to operate into terminated
transmission lines.
intended to operate into terminated
transmission lines.
4
T-
TRANSMIT - (Output) (Ethernet) - part of a
differential pair.
differential pair.
5
R+
RECEIVE + (Input) (Ethernet) - a data input
sourced by the MAU.
sourced by the MAU.
6
R-
RECEIVE - (Input) (Ethernet) - part of a
differential pair.
differential pair.
7
PRSTB*
DATA STROBE (Printer) - an active low output
pulse used to clock data from the system to the
printer.
pulse used to clock data from the system to the
printer.
8
+12VF
+12 Vdc Power - fused on MPU board.
9
PRD00
DATA (bit 1) (Printer)
10
GND
GROUND
11
PRD02
DATA (bit 2) (Printer)
12
PRD01
DATA (bit 0) (Printer)
13
PRD04
DATA (bit 3) (Printer)
14
PRD03
DATA (bit 3) (Printer)
15
PRD06
DATA (bit 4) (Printer)
16
PRD05
DATA (bit 5) (Printer)
17
GND
GROUND
18
PRD07
DATA (bit 7) (Printer)
19
GND
GROUND