P4Conh Port 4 Control Register (High Byte) - Samsung S3C8275X User Manual

8-bit cmos microcontrollers
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CONTROL REGISTERS
P4CONH
— Port 4 Control Register (High Byte)
Bit Identifier
Reset Value
Read/Write
Addressing Mode
.7–.6
.5–.4
.3–.2
.1–.0
4-34
.7
.6
0
0
R/W
R/W
Register addressing mode only
P4.7/SEG8 Configuration Bits
0
0
Input mode
0
1
Input mode with pull-up resistor
1
0
Push-pull output mode
1
1
Alternative function (SEG8)
P4.6/SEG9 Configuration Bits
0
0
Input mode
0
1
Input mode with pull-up resistor
1
0
Push-pull output mode
1
1
Alternative function (SEG9)
P4.5/SEG10 Configuration Bits
0
0
Input mode
0
1
Input mode with pull-up resistor
1
0
Push-pull output mode
1
1
Alternative function (SEG10)
P4.4/SEG11 Configuration Bits
0
0
Input mode
0
1
Input mode with pull-up resistor
1
0
Push-pull output mode
1
1
Alternative function (SEG11)
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
.5
.4
0
0
R/W
R/W
R/W
E9H
Set 1, Bank 1
.3
.2
.1
0
0
0
R/W
R/W
.0
0
R/W

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