ACT apricot - Page 169

Pin
1
2
3
4
5
6
7
8
SERIAL INTERFACE
RS232C Connector Pin Definition
Description
Pin
Frame Ground.
9 to 14
TxData.
15
RxData.
16 to 19
RTS.
20
CTS.
21 to 23
DSR.
24
OV (Signal GND). 25
DCD.
25-PIN D-TVPE FEMALE
0000000000000
000000000000
Description
N.C.
Rx Clock.
N.C
DTR.
N.C.
Tx Clock
N.C.
Figure 3.
RS232C Connector Detail.
Programming Details
The following paragraphs detail the format of the Write
Registers for setting channel A to operate in the
asynchronous mode and also the various options available
for
controlling the transfer of data over the serial link. For
details of programming the channel for synchronous
communications, reference should be made to the
appropriate Zilog documentation.
The address locations utilised by channel A and the
method for writing data to the Write Registers are described
in a previous section under the heading "Processor
Interface" .