Motorola MVME712A/D3 用户手册
Interconnect Signals
MVME712A/D3
3-17
3
C6
11
PRD02
DATA (bit 2) (Printer)
A6
12
PRD01
DATA (bit 1) (Printer)
C7
13
PRD04
DATA (bit 4) (Printer)
A7
14
PRD03
DATA (bit 3) (Printer)
C8
15
PRD06
DATA (bit 6) (Printer)
A8
16
PRD05
DATA (bit 5) (Printer)
C9
17
GND
GROUND
A9
18
PRD07
DATA (bit 7) (Printer)
C10
19
GND
GROUND
A10
20
PRACK*
DATA ACKNOWLEDGE (Printer) - a low level input
pulse indicating that the next character may be sent.
pulse indicating that the next character may be sent.
C11
21
PRPE
PAPER EMPTY (Printer) - out of paper.
A11
22
PRBSY
BUSY (Printer) - an input signal indicating that the
printer cannot receive data.
printer cannot receive data.
C12
23
INPRIME*
INPUT PRIME (Printer) - an output signal that clears
the printer buffer and initializes the logic.
the printer buffer and initializes the logic.
A12
24
PRSEL
SELECTED (Printer) - an input signal indicating that
the printer is selected.
the printer is selected.
C13
25
GND
GROUND
A13
26
PRFAULT* FAULT (Printer) - an input signal that indicates a
printer fault condition.
C14
27
GND
GROUND
A14
28
TXD3
TRANSMIT DATA (serial port 3) - data to be
transmitted is furnished on this line to the modem
from the terminal.
transmitted is furnished on this line to the modem
from the terminal.
C15
29
GND
GROUND
A15
30
RXD3
RECEIVE DATA (serial port 3) - data that is
demodulated from the receive line is presented to the
terminal by the modem.
demodulated from the receive line is presented to the
terminal by the modem.
C16
31
CTS3
CLEAR TO SEND (serial port 3) - CTS is a function
supplied to the terminal by the modem, and
indicates that it is permissible to begin transmission
of a message. When using a modem, CTS follows the
off-to-on transition of RTS after a time delay.
supplied to the terminal by the modem, and
indicates that it is permissible to begin transmission
of a message. When using a modem, CTS follows the
off-to-on transition of RTS after a time delay.
Table 3-12. Connector P2, J11 Interconnect Signals (MVME712
x) (Continued)
Pin Number
Signal
Mnemonic
Signal Name and Description
P2
J11