参数资料
型号: M30201F4T-FP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP56
封装: PLASTIC, QFP-56
文件页数: 97/158页
文件大小: 1633K
代理商: M30201F4T-FP
43
Under
development
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Interrupts
Key Input Interrupt
Key Input Interrupt
If the direction register of any of P00 to P07 is set for input and a falling edge is input to that port, a key input
interrupt is generated. A key input interrupt can also be used as a key-on wakeup function for cancelling the
wait mode or stop mode. Figure 1.31 shows the block diagram of the key input interrupt. Note that if an “L”
level is input to any pin that has not been disabled for input, inputs to the other pins are not detected as an
interrupt.
Figure 1.31. Block diagram of key input interrupt
Interrupt control
circuit
Key input interrupt control register
(address 004D16)
Key input interrupt
request
P07/KI7
P06/KI6
P01/KI1
P00/KI0
Port P04-P07 pull-up select
bit
Port P07 direction
register
Pull-up
transistor
Port P07 direction register
Port P06 direction
register
Port P01 direction
register
Port P00 direction
register
Pull-up
transistor
Pull-up
transistor
Pull-up
transistor
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