ST7MC2N6T3 查看數據表（PDF） - STMicroelectronics

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ST7MC2N6T3

8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI™

STMicroelectronics 

ST7MC1xx/ST7MC2xx

WINDOW WATCHDOG (Cont’d)

10.1.5 How to Program the Watchdog Timeout

Figure 35 shows the linear relationship between

the 6-bit value to be loaded in the Watchdog Coun-

ter (CNT) and the resulting timeout duration in mil-

liseconds. This can be used for a quick calculation

without taking the timing variations into account. If

Figure 35. Approximate Timeout Duration

3F

more precision is needed, use the formulae in Fig-

ure 36.

Caution: When writing to the WDGCR register, al-

ways write 1 in the T6 bit to avoid generating an

immediate reset.

38

30

28

20

18

10

08

00

1.5

18

34

50

65

82

98

Watchdog timeout (ms) @ 8 MHz fOSC2

114 128

62/309

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