Rainbow Electronics AT89C5122 User Manual
Page 179
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179
AT8xC5122/23
4202E–SCR–06/06
Table 111. Timeout value for
F
CK_WD
= 24 MHz / X2
Reset Value = XXXX XXXXb
The WDTRST register is used to reset / enable the WDT by writing 1EH then E1H in
sequence.
S2
S1
S0
Timeout for F
CK_WD
= 24 MHz / X2
0
0
0
4.10 ms
0
0
1
8.19 ms
0
1
0
16.38 ms
0
1
1
32.77 ms
1
0
0
65.54 ms
1
0
1
131.07 ms
1
1
0
262.14 ms
1
1
1
524.29 ms
Table 112. Watchdog Timer Enable register (Write Only) - WDTRST (A6h)
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
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