Motorola MVME712-10 User Manual page 39

Table 3-5: I/O Connector J9 Interconnect Signals (Continued)
Signal
Pin Number
Mnemonic
42 SRXCO2B
43 GND
44 SRXD2
45 SCTS2
46 SDCD2
47 SDSR2
48 GND
49 STXCI2
50 SRXCI2
51 GND
52 STXD3B
MVME712-10/D1
Signal Name and Description
RECEIVE CLOCK OUT (serial port 2) - this line
can be conÞgured to clock input data from a ter-
minal to a modem.
GROUND
RECEIVE DATA (serial port 2) - data that is
demodulated from the receive line is presented to
the terminal by the modem.
CLEAR TO SEND (serial port 2) - CTS is a func-
tion supplied to the terminal by the modem, and
indicates that it is permissible to begin transmis-
sion of a message. When using a modem, CTS fol-
lows the off-to-on transition of RTS after a time
delay.
DATA CARRIER DETECT (serial port 2) - sent by
the modem to the terminal to indicate that a valid
carrier is being received.
DATA SET READY (serial port 2) - DSR is a func-
tion supplied by the modem to the terminal to
indicate that the modem is ready to transmit data.
GROUND
TRANSMIT CLOCK (serial port 2) - this line can
be conÞgured to clock output data to the modem
from the terminal.
RECEIVE CLOCK IN (serial port 2) - this line can
be conÞgured to clock input data from a terminal
to a modem.
GROUND
TRANSMIT DATA (serial port 3) - data to be
transmitted is furnished on this line to the modem
from the terminal.
Interconnect Signals
3-9
3