參數(shù)資料
型號(hào)： M37545G2KP
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO32
封裝： 11 X 5.60 MM, 0.65 MM PITCH, PLASTIC, LSSOP-32
文件頁(yè)數(shù)： 18/63頁(yè)
文件大?。?/td> 774K
代理商： M37545G2KP
Rev.1.07
Mar 19, 2009
Page 25 of 60
REJ03B0140-0107
7545 Group
Key Input Interrupt (Key-on Wake-Up)
A key-on wake-up interrupt request is generated by applying the
level set by KEYEDGE to any pin of port P0 that has been set to
input mode and KEYSEL has been valid. In other words, it is
generated when the AND of input level goes from “1” to “0” or
from “0” to “1”.
An example of using a key input interrupt is shown in Figure 21,
where an interrupt request is generated by pressing one of the
keys provided as an active-low key matrix which uses ports P00
to P03 as input ports.
Fig. 21 Connection example when using key input interrupt and port P0 block diagram
Port PXx
“L” level output
PULL register
bit 7 = “0”
Port P07
latch
Port P07
Direction register = "1”
**
*
P07 output
Key input interrupt request
Port P0
Input read circuit
* P-channel transistor for pull-up
** CMOS output buffer
PULL register
bit 6 = "0”
Port P06
latch
Port P06
Direction register = "1”
**
*
P06 output
PULL register
bit 5 = "0”
Port P05
latch
Port P05
Direction register = "1”
**
*
P05 output
PULL register
bit 4 = "0”
Port P04
latch
Port P04
Direction register = "1”
**
*
P04 output
PULL register
bit 3 = "1”
Port P03
latch
Port P03
Direction register = "0”
**
*
P03 input
PULL register
bit 2 = "1”
Port P02
latch
Port P02
Direction register = "0”
**
*
P02 input
PULL register
bit 1 = "1”
Port P01
latch
Port P01
Direction register = "0”
**
*
P01 input
PULL register
bit 0 = "1”
Port P00
latch
Port P00
Direction register = "0”
**
*
P00 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 P00 key-on wakeup
selection register
Bit 0
Port P01 key-on wakeup
selection register
Bit 1
Port P02 key-on wakeup
selection register
Bit 2
Port P03 key-on wakeup
selection register
Bit 3
Port P04 key-on wakeup
selection register
Bit 4
Port P05 key-on wakeup
selection register
Bit 5
Port P06 key-on wakeup
selection register
Bit 6
Port P07 key-on wakeup
selection register
Bit 7
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37545G4GP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37545G4GP#U0 功能描述:MCU 2/5V 16K 32-LQFP QZ-ROM RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類(lèi)型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
M37545G4KP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37545G4-XXXGP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37545G6GP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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