參數資料
型號: UPD754264GS
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
文件頁數: 27/68頁
文件大?。?/td> 318K
代理商: UPD754264GS
2
μ
P
Internal bus
Interrupt enable flag (IE
×××
)
2
4
IM2
IM0
Note1
Edge
detector
INT0/P61
INTBT
INTT0
INTT1
INTT2
INTEE
IRQBT
IRQ0
IRQT0
IRQT1
IRQT2
IRQEE
IRQ2
KR4/P70
KR7/P73
Falling edge
detector
Note2
Key return reset circuit
IM2
IME
IPS
IST1
IST0
Decoder
VRQn
Priority control
ciricuit
Standby release
signal
S
Vector table
address
generator
Figure 8-1. Interrupt Control Circuit Block Diagram
Notes 1.
Noise eliminator (Standby release is disable when noise eliminator is selected.)
2.
The INT2 pin is not provided. Interrupt request flag (IRQ2) is set at the KRn pin falling edge when IM20 = 1 and IM21 = 0.
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