CHAPTER 9 WATCHDOG TIMER
User’s Manual U13850EJ6V0UD
263
(2) Watchdog timer clock selection register (WDCS)
This register selects the overflow time of the watchdog timer and the interval timer.
WDCS is set by an 8-bit memory manipulation instruction.
RESET input clears WDCS to 00H.
After reset: 00H
R/W
Address: FFFFF382H
7
6
5
4
3
2
1
0
WDCS
0
0
0
0
0
WDCS2
WDCS1
WDCS0
Watchdog timer/interval timer overflow time
f
XX
WDCS2
WDCS1
WDCS0
Clock
20 MHz
Note
12.58 MHz
0
0
0
2
14
/f
XX
819.2
µ
s
1.3 ms
0
0
1
2
15
/f
XX
1.6 ms
2.6 ms
0
1
0
2
16
/f
XX
3.3 ms
5.2 ms
0
1
1
2
17
/f
XX
6.6 ms
10.4 ms
1
0
0
2
18
/f
XX
13.1 ms
20.8 ms
1
0
1
2
19
/f
XX
26.2 ms
41.6 ms
1
1
0
2
20
/f
XX
52.4 ms
83.3 ms
1
1
1
2
22
/f
XX
209.7 ms
333.4 ms
Note
Only in the V850/SB1.
Caution
Be sure to set bits 3 to 7 to 0.
Содержание V850/SB1
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