參數(shù)資料
型號: UPD780024AGK-xxx-9ET
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 8位單晶片微控制器
文件頁數(shù): 27/96頁
文件大?。?/td> 661K
代理商: UPD780024AGK-XXX-9ET
27
μ
PD780021A, 780022A, 780023A, 780024A, 780021AY, 780022AY, 780023AY, 780024AY
Data Sheet U14042EJ4V0DS
Figure 5-5. Watch Timer Block Diagram
Figure 5-6. Watchdog Timer Block Diagram
f
X
/2
7
f
XT
f
W
f
W
2
4
f
W
2
5
f
W
2
6
f
W
2
7
f
W
2
8
f
W
2
9
Clear
9-bit prescaler
Clear
5-bit counter
INTWT
INTWTI
WTM7 WTM6 WTM5 WTM4 WTM1 WTM0
Watch timer mode
control register (WTM)
Internal bus
S
S
Oscillation
stabilization time
selection register
(OSTS)
Clock
input
controller
INTWDT
RESET
WDT mode signal
3
OSTS2 OSTS1 OSTS0
WDCS2 WDCS1WDCS0
Internal bus
Divider
Divided
clock
selector
Output
controller
Division mode
selector
RUN
WDTM4WDTM3
Watchdog timer
clock selection
register (WDCS)
Watchdog timer
mode register
(WDTM)
RUN
f
X
/2
8
f
X
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