User`s guide

56 • Appendix B
6. Select Bank 3 for Watch Dog Timer from SWC base address.
ÆSet Bit 1-0 of BANKSEL Register (I/O Base: 840H, Offset: 0FH) to 11,
for example:
• o 84F 03
7. Set the count down value for Watch Dog timer.
ÆSet 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:
• o 851 03 Æ3 minutes
8. Enable trigger event to re-start new counter value
ÆSet WDCFG Register (I/O Base: 840H, Offset: 12H) to 82H, for
example:
• o 852 82
9. Enable Watch Dog Timer function
ÆSet Bit 0 of WDCTL Register (I/O Base: 840H, Offset: 10H) to 1, for
example:
• o 850 01