Datasheet

V850ES/JG3 CHAPTER 10 WATCH TIMER FUNCTIONS
R01UH0015EJ0300 Rev.3.00 Page 390 of 870
Sep 30, 2010
(2/2)
2
14
/fW (0.5 s: fW = fXT)
2
13
/fW (0.25 s: fW = fXT)
2
5
/fW (977 s: fW = fXT)
2
4
/fW (488 s: fW = fXT)
2
14
/fW (0.5 s: fW = fBRG)
2
13
/fW (0.25 s: fW = fBRG)
2
5
/fW (977 s: fW = fBRG)
2
4
/fW (488 s: fW = fBRG)
WTM7
0
0
0
0
1
1
1
1
Selection of set time of watch flag
Clears after operation stops
Starts
WTM1
0
1
Control of 5-bit counter operation
WTM3
0
0
1
1
0
0
1
1
WTM2
0
1
0
1
0
1
0
1
Stops operation (clears both prescaler and 5-bit counter)
Enables operation
WTM0
0
1
Watch timer operation enable
μ
μ
μ
μ
Caution Rewrite the WTM2 to WTM7 bits while both the WTM0 and WTM1 bits are 0.
Remarks 1. f
W: Watch timer clock frequency
2. Values in parentheses apply to operation with fW = 32.768 kHz