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Chapter 3 PC 288 - CPU
Manual VIPA System 200V
3-22
HB97E - PC - Rev. 06/29
Write access only I/O-Port
293h
for WD-Timer.
The following sequence enables I/O-register
290h
and
292h
for write
access:
WR 293h
03h
WR 293h
06h
WR 293h
03h
WR 293h
01h
The following sequence inhibits I/O-register
290h
and
292h
for write
access:
WR 293h
03h
WR 293h
06h
WR 293h
03h
WR 293h
00h
Note!
After a reset write access to
290h
and
292h
is inhibited.
The serial number is available to the user via registers
271h
and
272h
.
VIPA will supply you with then relevant details on I/O-Port
285h
.
Changing the operating mode of COM1 RS232/RS422 I/O-Port
291h
R/W
"0"
"1"
Bit 0
RS232
RS422/485
Bit 1
RX enable
TX disable
Bit 2
TX disable
RX enable
Bit 3...7
reserved
The C165 control registers I/O-Port
292h
R/W (enabled via
293h
) are
reserved for the download.
Enable
Serial number
EEPROM
RS232/RS422
C165 control
register
Summary of Contents for System 200V PC 288
Page 1: ...Manual VIPA System 200V PC Order No VIPA HB97E_PC Rev 06 29 ...
Page 2: ...Lerrzeichen ...
Page 6: ...Contents Manual VIPA System 200V ii HB97E PC Rev 06 29 ...
Page 14: ...Chapter 1 Basics Manual VIPA System 200V 1 6 HB97E PC Rev 06 29 ...
Page 52: ...Chapter 3 PC 288 CPU Manual VIPA System 200V 3 24 HB97E PC Rev 06 29 ...
Page 54: ...Index Manual VIPA System 200V A 2 HB97E PC Rev 06 29 M Stich ...