參數資料
型號: UPD784031YGC-3B9
廠商: NEC Corp.
英文描述: 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 16-/8-bit的單晶片微控制器
文件頁數: 40/88頁
文件大小: 464K
代理商: UPD784031YGC-3B9
40
μ
PD784031Y
7.10 Watchdog Timer
A watchdog timer is provided to detect a hang up of the CPU. This watchdog timer generates a non-maskable interrupt
unless it is cleared by software within a specified interval time. Once enabled to operate, the watchdog timer cannot be
stopped by software. Whether the interrupt by the watchdog timer or the interrupt input from the NMI pin takes precedence
can be specified.
Figure 7-13. Block Diagram of Watchdog Timer
S
f
CLK
/2
21
f
CLK
/2
20
f
CLK
/2
19
f
CLK
/2
17
f
CLK
Clear signal
Timer
INTWDT
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