參數(shù)資料
型號: M37640E8
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCONTROLLER
中文描述: 單芯片8位CMOS單片機
文件頁數(shù): 40/172頁
文件大?。?/td> 1193K
代理商: M37640E8
2-28
7/9/98
Input and Output Ports
7600 Series
M37640E8-XXXF Preliminary Specification
Mitsubishi Microcomputers
2.7
Input and Output Ports
2.7.1
Ports
This device has 66 programmable I/O pins arranged as ports P
0
0
to P
8
7
. Each port bit can be
configured as input or output. To set the I/O port bit direction, write a “1” to the corresponding
direction register bit to select output mode, or write a “0” to the direction register bit to select input
mode.
Address
Description
Acronym and
Value at Reset
Address
Description
Acronym and
Value at Reset
0008
16
0009
16
000A
16
000B
16
000C
16
000D
16
000E
16
000F
16
0010
16
Port P0
Port P0 direction register
Port P1
Port P1 direction register
Port P2
Port P2 direction register
Port P3
Port P3 direction register
Port control register
Port P2 pull-up Control
Register
P0=00
P0D=00
P1=00
P1D=00
P2=00
P2D=00
P3=00
P3D=00
PTC=00
0014
16
0015
16
0016
16
0017
16
0018
16
0019
16
001A
16
001B
16
001C
16
Port P6
Port P6 direction register
Port P5
Port P5 direction register
Port P4
Port P4 direction register
Port P7
Port P7 direction register
Port P8
P6=00
P6D=00
P5=00
P5D=00
P4=00
P4D=00
P7=00
P7D=00
P8=00
0012
16
PUP2=00
001D
16
Port P8 direction register
P8D=00
Port
2nd Function
Bit 4
0
Bits 4
1
-4
2
multiplexed with external interrupts INT0, INT1
Bit 4
3
multiplexed with Timer X CNTR0 pin
Bit 4
4
multiplexed with Timer Y CNTR1 pin
Bit 5
0
multiplexed with XC
in
Bit 5
1
multiplexed with Timer 1/2 pulse output pin or XC
out
Bit 5
2
multiplexed with OBF
0
output to master CPU
Bit 5
3
multiplexed with IBF
0
output to master CPU
Bit 5
4
multiplexed with S
0
input from master CPU
Bit 5
5
multiplexed with A
0
input from master CPU
Bit 5
6
multiplexed with R (E) input from master CPU
Bit 5
7
multiplexed with W (R/W) input from master CPU
Bits 6
0
-6
7
multiplexed with Master CPU Bus I/F DQ0-DQ7 pins
Bit 7
0
multiplexed with SOF
Bit 7
1
multiplexed with HOLD
Bit 7
2
multiplexed with S
1
input from master CPU
Bit 7
3
multiplexed with IBF
1
or HLDA
Bit 7
4
multiplexed with OBF
1
input from master CPU
Bits 8
0
-8
3
multiplexed with the first alternate function UART2 pins or 2nd alternate function SIO pins
Bits 8
4
-8
7
multiplexed with the UART1 pins
multiplexed with EDMA
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