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C O M E x p r e s s M o d u l e
C O M - 4 5 G S
Appendix A Programming the Watchdog Timer
A-4
5 WD_ENABLE R/W
VSB3V Enable watchdog timer.
4 WD_PULSE
R/W
VSB3V Watchdog output level or pulse. If set 0
(default), the pin of watchdog is level
output. If write 1, the pin will output with
a pulse.
3 WD_UNIT
R/W
VSB3V Watchdog unit select. Default 0 is
select second. Write 1 to select minute.
2 WD_HACTIVE R/W
VSB3V Program WD2 output level. If set to 1
and watchdog asserted, the pin will be
high. If set to 0 and watchdog asserted,
this pin will drive low (default).
1-0 WD_PSWIDTH
Watchdog pulse width selection. If the
pin output is selected to pulse mode.
This pulse width can be chosen.
00b-1m second.
01b-20m second.
10b-100m second.
11b- 4 second.
Watchdog Timer Range Register – Index 37h
Power-on default [7:0] =0000_0000b
Bit Name
R/W
PWR Description
7-0 WD_TIME
R/W
VSB3V Watchdog timing range from 0~255. This
unit is either second or minute
programmed by the watchdog timer control
register bit3.
Summary of Contents for COM-45GS
Page 30: ...COM Express Module C O M 4 5 G S Chapter 3 Award BIOS Setup 3 1 Chapter Award 3 BIOS Setup...
Page 45: ...COM Express Module C O M 4 5 G S Appendix B I O Information B 1 I O Information Appendix B...
Page 46: ...COM Express Module C O M 4 5 G S Appendix B I O Information B 2 B 1 I O Address Map...
Page 47: ...COM Express Module C O M 4 5 G S Appendix B I O Information B 3 B 2 Memory Address Map...