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phyCORE-Z500P(T)
11.11 RS-232 Interface (X23)
Connector X23 provides a connection to the first Super-IO (SMSC3112) serial interface (RS232 level).
The RS232 interface (X23) provides a full set of handshake signals at RS-232 compatible levels.
Table 17:
RS-232 Interface X23
below shows the signal mapping of the RS-232 level signals to connector X23.
This serial interface can be accessed through Uart1 at IO-address 0x3f8 IRQ4.
Pin
Signal
1
DCD1_RS232_CON
2
DSR1_RS232_CON
3
RXD1_RS232_CON
4
RTS1_RS232_CON
5
TXD1_RS232_CON
6
CTS1_RS232_CON
7
DTR1_RS232_CON
8
RI1_RS232_CON
9
GND
10
n.c. (key)
Table 17:
RS-232 Interface X23
Figure 24: RS232 Interface X23
62
Direction
Input
Input
Input
Output
Output
Input
Output
Input
Power
© PHYTEC Messtechnik GmbH 2009
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