參數(shù)資料
型號： M30240M1-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, MICROCONTROLLER, PQFP80
封裝： 0.80 MM PITCH, PLASTIC, QFP-80
文件頁數(shù)： 55/125頁
文件大?。?/td> 753K
代理商： M30240M1-XXXFP
Mitsubishi microcomputers
M16C / 24 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
37
CONFIDENTIAL
Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change
Key-Input Interrupt
2.14 Key-Input Interrupt
If the direction register of any of pin of Port0 or Port1 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 18 shows the block diagram of the key-input
interrupt.
Figure 18:
Block diagram of key input interrupt
(1) Enabling/disabling the key-input interrupt
The key-input interrupt can be enabled and disabled using the key-input interrupt register (004D16). The key-input
interrupt is affected by the interrupt priority level (IPL) and the interrupt enable ag (I ag).
(2) Occurrence timing of the key-input interrupt
With key-input interrupt acceptance enabled, ports P0 and P1, which are set to input, become key-input interrupt
pins (KI0 through KI15). A key-input interrupt occurs when a falling edge is input to a key-input interrupt pin. At this
moment, the level of other key-input interrupt pins must be “H”. No interrupt occurs when the level of any other key-
input interrupt pins is “L”.
(3) How to determine a key-input interrupt
A key-input interrupt occurs when a falling edge is input to one of 16 pins, but each pin has the same vector address.
Therefore, read the input level of ports P0 and P1 in the key-input interrupt routine to determine the interrupted pin.
(4) Registers related to the key-input interrupt
Figure 19 shows the memory map of key-input interrupt-related registers.
Figure 19:
Memory map of key-input interrupt-related registers
P1i/KIj
Port PXi
pull-up select bit
Port P1i
direction register
Pull-up
transistor
Interrupt control circuit
Key input interrupt control register
(address 004D16)
Key input
interrupt request
P0i/KIj
Port P0i
pull-up select bit
Port P0i
direction register
Pull-up
transistor
i=0~7; j=0~7
i=0~7; j=8~15
KIO
0
KIO
15
Key-input interrupt control register (KUPIC)
Port 0 (P0)
Port 1 (P1)
Port 0 direction register
Port 1 direction register
Pull-up control register 0
Pull- up control register 1
04D 16
3E0 16
3E1 16
3E2 16
3E3 16
3FC 16
3FD 16
相關(guān)PDF資料
PDF描述
M30245MC-XXXGP 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
M30245FCGP 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100
M30260F3VGP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48
M30260M3A-XXXGP-U5 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48
M30260M8A-XXXGP-U5 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M30240M2 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M30240M2-XXXFP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M30240M3 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M30240M3-XXXFP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M30240M4 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*