ADLINK Technology cPCI-6810, User Manual

Page: 77 / 82

Appendix 67
6. Select Bank 3 for Watch Dog Timer from SWC base
address.
X
Set Bit 1-0 of BANKSEL Register (I/O Base: 840H, Offset:
0FH) to 11, for example:
Z
o 84F 03
7. Set the count down value for Watch Dog timer.
-> Set count down value to WDTO Register (I/O Base: 840H,
Offset: 11H)
00000000: Reserved
00000001: 1 minute
00000010: 2 minutes
:
:
11111111: 255 minutes
For example:
X
o 851 03?3 minutes
8. Enable trigger event to re-start new counter value
X
Set WDCFG Register (I/O Base: 840H, Offset: 12H) to 82H,
for example:
Z
o 852 82
9. Enable Watch Dog Timer function
X
Set Bit 0 of WDCTL Register (I/O Base: 840H, Offset: 10H)
to 1, for example:
Z
o 850 01