st72321j STMicroelectronics, st72321j Datasheet - Page 51
st72321j
Manufacturer Part Number
st72321j
Description
8-bit Mcu With Nested Interrupts, Flash, 10-bit Adc, 5 Timers, Spi, Sci, I2c Interface
Manufacturer
STMicroelectronics
Datasheet
1.ST72321J.pdf
(179 pages)
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WATCHDOG TIMER (Cont’d)
10.1.4 How to Program the Watchdog Timeout
Figure 31
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 31. Approximate Timeout Duration
3F
38
30
28
20
18
10
08
00
1.5
shows the linear relationship between
18
34
Watchdog timeout (ms) @ 8 MHz. f
50
more precision is needed, use the formulae in
ure
Caution: When writing to the WDGCR register, al-
ways write 1 in the T6 bit to avoid generating an
immediate reset.
65
32.
82
OSC2
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