参数资料
型号: mPD789322
厂商: NEC Corp.
元件分类: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器与2/4/8K字节在系统可编程闪存
文件页数: 36/96页
文件大小: 482K
代理商: MPD789322
Preliminary Product Information U14673EJ1V0PM00
41
PD789322,789324,789326,789327
5.4 Watch Timer
5.4.1 Watch timer functions
The watch timer has the following functions.
Watch timer
Interval timer
The watch and interval timers can be used at the same time.
Figure 5-18 shows a block diagram of the watch timer.
Figure 5-18. Watch Timer Block Diagram
fX/27
fXT
Selector
fW
24
fW
25
fW
26
fW
27
fW
28
fW
29
Clear
9-bit prescaler
Selector
Clear
5-bit counter
INTWT
INTWTI
WTM7 WTM6 WTM5 WTM4 WTM1 WTM0
Watch timer mode control
register (WTM)
Internal bus
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