參數(shù)資料
型號： M37549G1FP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO24
封裝： 5.30 X 10.10 MM, 0.80 MM PITCH, PLASTIC, SSOP-24
文件頁數(shù)： 20/86頁
文件大?。?/td> 1375K
代理商： M37549G1FP
Rev.2.02
Mar 31, 2009
Page 25 of 81
REJ03B0202-0202
7549 Group
Key Input Interrupt (Key-On Wakeup)
A key-on wakeup interrupt request is generated by applying “L”
level to any pin of port P1 that has been set to input mode.
In other words, it is generated when the AND of input level goes
from “1” to “0”. An example of using a key input interrupt is
shown in Figure 23, where an interrupt request is generated by
pressing one of the keys provided as an active-low key matrix
which uses ports P10 to P13 as input ports.
Fig 23. Connection example when using key input interrupt and port P1 block diagram
Port PXx
level output
Port P1 pull-up control register
bit 7 =
Port P17
latch
Port P17
Direction register =
**
*
P17 output
Key input interrupt request
* P-channel transistor for pull-up
** CMOS output buffer
Port P1 pull-up control register
bit 6 =
Port P16
latch
Port P16
Direction register =
**
*
P16 output
bit 5 =
Port P15
latch
Port P15
Direction register =
**
*
P15 output
bit 4 =
Port P14
latch
Port P14
Direction register =
**
*
P14 output
bit 3 =
Port P13
latch
Port P13
Direction register =
**
*
P13 input
bit 2 =
Port P12
latch
Port P12
Direction register =
**
*
P12 input
bit 1 =
Port P11
latch
Port P11
Direction register =
**
*
P11 input
bit 0 =
Port P10
latch
Port P10
Direction register =
**
*
P10 input
Falling edge
detection
Falling edge
detection
Falling edge
detection
Falling edge
detection
Falling edge
detection
Falling edge
detection
Falling edge
detection
Falling edge
detection
Port P10 key-on wakeup
selection bit
Port P16 key-on wakeup
selection bit
“L”
“0”
“1”
“0”
Port P1
Input read circuit
Port P17 key-on wakeup
selection bit
Port P1 pull-up control register
Port P14 key-on wakeup
selection bit
Port P13 key-on wakeup
selection bit
Port P12 key-on wakeup
selection bit
Port P1 pull-up control register
Port P11 key-on wakeup
selection bit
Port P15 key-on wakeup
selection bit
相關(guān)PDF資料
PDF描述
M37560M8-XXXFP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP100
M37560EFDFP 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP100
M37560MFD-XXXFP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP100
M37560EFFP 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP100
M37560M8-XXXGP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37549G1-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37549G2FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37549G2-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37549G3FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37549G3-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-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

*
*
*