SK-91465X-100PMC User Guide
Chapter 5 Connectors
UG-910056-11
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© Fujitsu Microelectronics Europe GmbH
5.3 UART / LIN Connector (X6, X8, X12)
Three 9-pin D-Sub female connectors are used for the serial interfacesUART4 (X6),
LIN/UART6 (X12) and LIN/UART7(X8).
Take care, that the RS232 as well as the LIN signals are shared at the connectors and have
to be selected by jumpers.
Figure 5-2: UART Connector
Pin Number
Pin Signal
Description
1
+VBat
Power from LIN bus
TXD
RS-232 transmit output
2
LIN
Bi-directional LIN-interface
3
RXD
RS-232 receive input
4
DTR
Connected to DSR (pin 6)
5
GND
Ground normally used for RS232 connection
6
DSR
Connected to DTR (pin 4)
7
RTS
Can be connected with CTS by jumper
8
CTS
Can be connected with RTS by jumper
9
LGND
Ground normally used for LIN connection
Shield
GND
Ground
Table 5-2: UART Connector Signals
Note:
Connector X6 is connected to RS232, only.
Connector X8 and X12 can be connected to RS232 or
LIN.
