Datasheet

58
AT89C5132
4173C–USB–07/04
Registers Table 48. WDTRST Register
WDTRST (S:A6h Write only) – Watchdog Timer Reset Register
Reset Value = XXXX XXXXb
Table 49. WDTPRG Register
WDTPRG (S:A7h) – Watchdog Timer Program Register
Reset Value = XXXX X000b
76543210
--------
Bit
Number
Bit
Mnemonic Description
7 - 0 - Watchdog Control Value.
76543210
-----WTO2WTO1WTO0
Bit
Number
Bit
Mnemonic Description
7-3 -
Reserved
The values read from these Bits are indeterminate. Do not set these Bits.
2-0 WTO2:0
Watchdog Timer Time-Out Selection Bits
Refer to Table 47 for time-out periods.