upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 216

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

(2) Watchdog timer clock select register (WDCS)
216
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 sets WDCS to 00H.
WDCS
After reset: 00H
Caution
WDCS2
0
0
0
0
1
1
1
1
7
0
Be sure to set bits 3 to 7 to 0.
WDCS1
R/W
0
0
1
1
0
0
1
1
6
0
WDCS0
CHAPTER 9
0
1
0
1
0
1
0
1
User’s Manual U12768EJ4V1UD
5
0
Address: FFFFF382H
2
2
2
2
2
2
2
2
14
15
16
17
18
19
20
22
/f
/f
/f
/f
/f
/f
/f
/f
Clock
XX
XX
XX
XX
XX
XX
XX
XX
WATCHDOG TIMER
4
0
Watchdog Timer/Interval Timer Overflow Time
819.2
1.6 ms
3.3 ms
6.6 ms
13.1 ms
26.2 ms
52.4 ms
209.7 ms
20 MHz
3
0
µ
s
WDCS2
17 MHz
964
1.928 ms
3.855 ms
7.710 ms
15.42 ms
30.84 ms
61.68 ms
246.7 ms
2
µ
s
f
XX
WDCS1
1.6 ms
3.2 ms
6.6 ms
13.1 ms
26.2 ms
52.4 ms
104.9 ms
419.4 ms
10 MHz
1
8.2 ms
16.4 ms
32.8 ms
65.5 ms
131.1 ms
262.1 ms
524.3 ms
2.1 s
WDCS0
2 MHz
0