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MB95630H Series
[bit3:1] WTC[2:0]: Watch prescaler interrupt interval time select bits
These bits select the interval time.
bit3:1
Writing "100"
Writing "000"
Writing "001"
Writing "010"
Writing "011"
Writing "101"
Writing "110"
Writing "111"
[bit0] WCLR: Watch prescaler clear bit
This bit clears all bits in the counter of the watch prescaler to "1".
bit0
Read access
Writing "0"
Writing "1"
Note: When the output of the watch prescaler is selected as the count clock of the software watchdog timer,
clearing the watch prescaler with this bit also clears the software watchdog timer.
MN702-00009-2v0-E
Interval time
(Subclock, F
= 32.768 kHz)
CL
10
2
2/F
(62.5 ms)
CL
11
2
2/F
(125 ms)
CL
12
2
2/F
(250 ms)
CL
13
2
2/F
(500 ms)
CL
14
2
2/F
(1 s)
CL
15
2
2/F
(2 s)
CL
16
2
2/F
(4 s)
CL
17
2
2/F
(8 s)
CL
The read value is always "0".
Has no effect on operation.
Clears all bits in the counter of the watch prescaler to "1".
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER 9 WATCH PRESCALER
Details
Interval time
(Sub-CR clock, F
10
2
2/F
(20.48 ms)
CRL
11
2
2/F
(40.96 ms)
CRL
12
2
2/F
(81.92 ms)
CRL
13
2
2/F
(163.84 ms)
CRL
14
2
2/F
(327.68 ms)
CRL
15
2
2/F
(655.36 ms)
CRL
16
2
2/F
(1.311 s)
CRL
17
2
2/F
(2.621 s)
CRL
Details
9.5 Register
= 100 kHz)
CRL
121
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