參數(shù)資料
型號(hào): μPD780034
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 22/44頁
文件大?。?/td> 238K
代理商: ΜPD780034
22
m
PD780031, 780032, 780033, 780034
Figure 5-5. Block Diagram of Watch Timer
Figure 5-6. Block Diagram of Watchdog Timer
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
0
WTM1 WTM0
Watch timer mode
control register (WTM)
Internal bus
S
S
f
X
f
X
/2
8
f
XT
RUN
Clock
input
control
circuit
INTWDT
RESET
WDT mode signal
3
OSTS2 OSTS1 OSTS0
WDCS2 WDCS1WDCS0
WDTM4 WDTM3
Internal bus
Division
circuit
Divided
clock
selection
circuit
Output
control
circuit
Division mode
selection circuit
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