参数资料
型号: MB90F489BPMC
厂商: FUJITSU LTD
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP100
封装: 14 X 14 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-100
文件页数: 87/124页
文件大小: 3283K
代理商: MB90F489BPMC
MB90480B/485B Series
DS07-13722-11E
65
13. Watch Timer
The watch timer is a 15-bit timer using the sub clock. This circuit can generate interrupts at predetermined
intervals. Also a setting is available to enable it to be used as the clock source for the watchdog timer.
(1) Register List
(2) Block Diagram
Watch timer control register (WTC)
0000AAH
Read/write
Initial value
R
0
R/W
0
R/W
0
R/W
1
R/W
0
R/W
0
R/W
0
76
5
4
3
2
1
0
SCE
R/W
1
WDCS
WTIE
WTOF
WTR
WTC2
WTC1
WTC0
WDCS
SCE
WTIE
WTOF
WTR
WTC2
WTC1
WTC0
28
29
210
211
212
213
214
210
213
214 215
Sub clock
Watch counter
Interval
selector
Interrupt
generator
circuit
Watch timer
interrupt
To watchdog timer
Watch timer control register (WTC)
Clear
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