EM500EV-IB0

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The EM500EV-IB0 RS232 interface board implements one RS232 serial port. The port is built around SIPEX SP3243 RS232 transceiver IC. RS232 interface lines are available on a standard DB-9M connector:

 

DB9M

 

Pin # (DB-9M)

R232 line (DB-9M)

EM500 control line

1

CD (input)

GPIO4/P0.4

2

RX (input)

RX

3

TX (output)

TX

4

DTR (output)

GPIO3/P0.3

5

SYSTEM GROUND

 

6

DSR (input)

GPIO1/P0.1/INT1

7

RTS (output)

GPIO2/P0.2

8

CTS (input)

GPIO0/P0.0/INT0

9

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