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參數(shù)資料
| 型號： | M38C3 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | Single Chip 8 Bits Microcomputer(8位單片機) |
| 中文描述： | 單芯片8位單片機（8位單片機） |
| 文件頁數(shù)： | 18/62頁 |
| 文件大小： | 881K |
| 代理商： | M38C3 |
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18
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
38C3 Group
8 8
8 8
8
8
8 8
8
8 8
8
8 8
8
8 8
8
8 8
8
8 8
8
Port P8
0
latch
Port P8
0
direction register = “0”
Port P8
1
latch
Port P8
direction register = “0”
Port P8
2
latch
Port P8
direction register = “0”
Port P8
3
latch
Port P8
3
direction register = “0”
Port P8
4
latch
Port P8
direction register = “1”
Port P8
5
latch
Port P8
direction register = “1”
Port P8
6
latch
Port P8
6
direction register = “1”
Port P8
7
latch
Port P8
7
direction register = “1”
P8
0
input
P8
1
input
P8
2
input
P8
3
input
P8
4
output
P8
5
output
P8
6
output
P8
7
output
PULL register A
Bit 5 = “1”
Port P8
Input reading circuit
Port PXx
“L” level output
8
P-channel transistor for pull-up
8 8
CMOS output buffer
Key input interrupt request
Key Input Interrupt (Key-on Wake-Up)
A key input interrupt request is generated by applying “L” level to any
pin of port P8 that have been set to input mode. In other words, it is
generated when AND of input level goes from “1” to “0”. An example
of using a key input interrupt is shown in Figure 15, where an inter-
rupt request is generated by pressing one of the keys consisted as
an active-low key matrix which inputs to ports P8
0
–P8
3
.
Fig. 15 Connection example when using key input interrupt and port P8 block diagram
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| M38C30E1M | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38C30E1MXXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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