Functional Description
MEN Mikro Elektronik GmbH
35
20A014-00 E2 – 2007-08-16
2.9
UART COM1 Interface
COM1 is a standard RS232 interface. It is available via an RJ45 or D-Sub connector
at the front panel. COM1 is controlled by the MPC8540 DUART 0.
Table 7.
Signal mnemonics of UART COM1 interface
Connection via RJ45 Connector
Connector types:
• Modular 8/8-pin mounting jack according to FCC68
• Mating connector:
Modular 8/8-pin plug according to FCC68
Table 8.
Pin assignment of 8-pin RJ45 UART connector (COM1)
Signal
Direction
Function
CTS#
in
Clear to send
GND
-
Ground
RTS#
out
Request to send
RXD
in
Receive data
TXD
out
Transmit data
1
-
2
-
3
-
4
GND
5
RXD
6
TXD
7
CTS#
8
RTS#
1
8