參數(shù)資料
型號: ST52513F3
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PDSO20
封裝: ROHS COMPLIANT, SOP-20
文件頁數(shù): 107/136頁
文件大小: 2791K
代理商: ST52513F3
Watchdog Control Register (WDT_CR)
Configuration Register 7 (07h) Read/Write
Reset Value: 0000 0001 (01h)
Bit 7-4: Not Used
Bit 3-0: D3-0 Watchdog Clock divisor factor bits
The Watchdog Clock (WDT CLK) is divided
by the numeric factor determined by these
bits, according with Table 11.2 and the
following formula:
70
-
D3
D2D1D0
Timeout ms
()
510
5
DivisionFactor
×
Clock MHz
()
-------------------------------------------------------------------
=
Table 11.2 Watchdog Timeout configuration examples
WDT_CR(3:0)
Division Factor
Timeout Values (ms)
5 MHz
10 MHz
20MHz
0000
1
0.1
0.05
0.025
0001
625
62.5
31.25
15.625
0010
1250
125
62.5
31.25
0011
1875
187.5
93.75
46.875
0100
2500
250
125
62.5
0101
3125
312.5
156.25
78.125
0110
3750
375
187.5
93.75
0111
4375
437.5
218.75
109.375
1000
5000
500
250
125
1001
5625
562.5
281.25
140.625
1010
6250
625
312.5
156.25
1011
6875
687.5
343.75
171.875
1100
7500
750
375
187.5
1101
8125
812.5
406.25
203.125
1110
8750
875
437.5
218.75
1111
9375
937.5
468.75
234.375
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