參數(shù)資料
型號(hào): UPD754202A
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 4位單晶片微控制器
文件頁(yè)數(shù): 28/66頁(yè)
文件大小: 302K
代理商: UPD754202A
28
μ
PD754202, 754202(A)
9. RESET FUNCTION
9.1 Configuration and Operation Status of Reset Function
There are three kinds of reset input: the external reset signal (RESET), the reset signal sent from the basic
interval/watchdog timer, and the reset signal generated by a falling edge signal from KRn in the STOP mode. When
any of these reset signals is input, an internal reset signal is generated. The configuration is shown in Figure
9-1.
Figure 9-1. Configuration of Reset Function
V
DD
Mask option
KRREN
RESET
Q
R
S
Q
S
R
Q
S
R
Instruction
STOP mode
KRF
WDF
Watchdog timer overflow
Internal reset signal
Instruction
V
DD
Mask option
P70/KR4
P71/KR5
P72/KR6
P73/KR7
I
Falling edge detector
Interrupt
One-shot pulse generator
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