
77
AT85C51SND3Bx
7632A–MP3–03/06
Registers
Reset Value = XXXX XXXXb
Reset Value = XXXX X000b
Table 89. WDTRST Register
WDTRST (0.A6h Write only) – Watchdog Timer Reset Register
7 6 5 4 3 2 1 0
- - - - - - - -
Bit
Number
Bit
Mnemonic
Description
7-0 - Watchdog Control Value
Table 90. WDTPRG Register
WDTPRG (0.A7h) – Watchdog Timer Program Register
7 6 5 4 3 2 1 0
- - - - - WTO2 WTO1 WTO0
Bit
Number
Bit
Mnemonic
Description
7-3 -
Reserved
The value read from these bits is indeterminate. Do not set these bits.
2-0 WTO2:0
Watchdog Timer Time-Out Selection Bits
Refer to Ta bl e 88 for time-out periods.
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