W83793G Datasheet, PDF (19/131 Pages) Winbond – Winbond H/W Monitor

W83793G
8.2.2 Watch Dog Timer Register Details
8.2.2.1 Lock Watch Dog Register (WDT Lock)
Writing this register enable the Soft Watch Dog Timer or Hard Watch Dog Timer. This register is
written only and user can confirm the write success by reading ENABLE_WDT.
Location:
Type:
Bank 0 Address 01_HEX
Write Only
Reset:
VSB5V (Pin 7) Rising,
SYSRSTIN_N (Pin 15) Falling in Soft WDT mode.
WDTLOCK (WATCH DOG TIMER LOCK)
BIT
7
6
5
4
3
2
1
0
Name
UNLOCK CODE
BIT
DESCRIPTION
Unlock Code.
Write 55_HEX, Enable Soft Watch Dog Timer.
7-0
Write AA_HEX, Disable Soft Watch Dog Timer.
Write 33_HEX, Enable Hard Watch Dog Timer.
Write CC_HEX, Disable Hard Watch Dog Timer.
8.2.2.2 Watch Dog Enable Register (Enable WDT)
Location:
Type:
Bank 0 Address 02_HEX
Read Only
Reset:
VSB5V (Pin 7) Rising.
BIT
Name
Reset
ENABLE WDT (WATCH DOG TIMER ENABLE STATUS)
7
6
5
4
3
2
Reserve
0
0
0
0
0
0
1
HARD
0
0
SOFT
0
- 15 -
Publication Release Date: Dec. 11, 2006
Revision 1.0