AT89C5122 ATMEL [ATMEL Corporation], AT89C5122 Datasheet - Page 179
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AT89C5122
Manufacturer Part Number
AT89C5122
Description
MICROCONTROLLER WITH USB AND SMART CARD READER INTERFACES
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C5122.pdf
(213 pages)
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4202D–SCR–06/05
Table 111. Timeout value for
Table 112. Watchdog Timer Enable register (Write Only) - WDTRST (A6h)
Reset Value = XXXX XXXXb
The WDTRST register is used to reset / enable the WDT by writing 1EH then E1H in
sequence.
7
-
S2
0
0
0
0
1
1
1
1
6
-
S1
0
0
1
1
0
0
1
1
5
-
F
CK_WD
S0
= 24 MHz / X2
0
1
0
1
0
1
0
1
4
-
3
-
Timeout for F
2
-
131.07 ms
262.14 ms
524.29 ms
16.38 ms
32.77 ms
65.54 ms
4.10 ms
8.19 ms
CK_WD
= 24 MHz / X2
1
-
0
-
179
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