71 / 144 page
CP321
Configuration
ID 24977, Rev. 02
© 2003 Kontron Modular Computers GmbH
Page 4 - 13
4.3.8
Control Register
The Control register provides access to the front panel general purpose LED’s (LED1R and
LED1G), allows for the generation of a software reset of the system, and is used to control the
configuration of the SER 0 (UART B) either for RS232 or RS485 operation.
Table 4-11:Control Register
REGISTER NAME
CONTROL
ACCESS
ADDRESS
0xFFE0 001A
R
W
BIT POSITION
7
6
5
4
3
2
1
0
CONTENT
RS_CTL
res.
res.
S_RST
res.
res.
LED1R
LED1G
DEFAULT
n/a
n/a
n/a
n/a
n/a
n/a
0
0
BIT
NAME
VAL
DESCRIPTION
0LED1G
0
LED1G (green) off
1
LED1G (green) on
1LED1R
0
LED1R (red) off
1
LED1R (red) on
2
0
reserved
1
3
0
reserved
1
4S_RST
0
no operation
1
Causes a software reset (S_RST) to be initiated
5
0
reserved
1
6
0
reserved
1
7RS_CTL
0
Indicates that the serial interface, SER 0 (UART B), is to be configured for
RS232 operation
1
Indicates that the serial interface, SER 0 (UART B), is to be configured for
RS485 operation
Warning!
When setting bit 7 care must be taken to
ensure that the installed interface corre-
sponds to the bit setting. A mismatch
may cause damage to the CP321 or the
application.
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
