Registers, E table 67), E figure 41) – Rainbow Electronics AT89C51SND1C User Manual
Page 61: At8xc51snd1c
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61
AT8xC51SND1C
4109E–8051–06/03
Registers
Table 67. WDTRST Register
WDTRST (S:A6h Write only) – Watchdog Timer Reset Register
Reset Value = XXXX XXXXb
Figure 41. WDTPRG Register
WDTPRG (S:A7h) – Watchdog Timer Program Register
Reset Value = XXXX X000b
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
Bit
Number
Bit
Mnemonic
Description
7 - 0
-
Watchdog Control Value
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 Table 66 for time-out periods.
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