參數(shù)資料
型號: M37640M4T
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 18/48頁
文件大小: 563K
代理商: M37640M4T
MITSUBISHI
ELECTRIC
18
MITSUBISHI MICROCOMPUTERS
7630 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
KEY-ON WAKE-UP
“Key-on wake-up” is one way of returning from a power-down state
caused by the STP or WIT instruction. Any terminal of port P4 can
be used to generate the key-on wake-up interrupt request. The
active polarity can be selected by the key-on wake-up polarity con-
trol bit of PCON (see Fig. 12). If any pin of port P4 has the selected
active level applied, the key-on wake-up interrupt request will be set
to “1”. Please refer to Fig. 16.
Fig. 16
Block diagram of key-on wake-up circuit
PUP4
j
key-on wake-up interrupt
key-on wake-up control bit
P4D
j
port P4
j
I/O circuit
port P4
j
/KW
j
j = 0 to 7
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