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参数资料
| 型号： | M38827G5HP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件页数： | 17/62页 |
| 文件大小： | 606K |
| 代理商： | M38827G5HP |
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Rev.1.01
Nov 14, 2005
page 24 of 60
REJ03B0089-0101
3882 Group
Fig. 18 Connection example when using key input interrupt and port P3 block diagram
Key Input Interrupt (Key-on Wake Up)
A Key input interrupt request is generated by applying “L” level to
any pin of port P3 that have been set to input mode. In other
words, it is generated when the logical AND of all port P3 input
goes from “1” to “0”. An example of using a key input interrupt is
shown in Figure 18, where an interrupt request is generated by
pressing one of the keys consisted as an active-low key matrix
which inputs to ports P30–P33.
Port P30
latch
Port P30
direction register = “0”
Port P31
latch
Port P31
direction register = “0”
Port P32
latch
Port P32
direction register = “0”
Port P33
latch
Port P33
direction register = “0”
Port P34
latch
Port P34
direction register = “1”
Port P35
latch
Port P35
direction register = “1”
Port P36
latch
Port P36
direction register = “1”
Port P37
latch
Port P37
direction register = “1”
P30 input
P31 input
P32 input
P33 input
P34 output
P35 output
P36 output
P37 output
Port control register 1
Bit 5 = “0”
Port P3 input circuit
Port PXx
“L” level output
P-channel transistor for pull-up
CMOS output buffer
Key input interrupt request
Port control register 1
Bit 4 = “1”
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相关代理商/技术参数 |
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|---|---|
| M38827G5-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38827G6-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38827G7-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38827G8-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38827G9-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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