参数资料
型号: M37630E4FS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, UVPROM, 10 MHz, MICROCONTROLLER, CQCC80
封装: 0.80 MM PITCH, CERAMIC, LCC-80
文件页数: 11/49页
文件大小: 840K
代理商: M37630E4FS
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
PUP4j
key-on wake-up interrupt
key-on wake-up control bit
P4Dj
port P4j I/O circuit
port P4j/KWj
j = 0 to 7
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