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CONTROL REGISTERS
P4CONL
— Port 4 Control Register (Low Byte)
Bit Identifier
RESET Value
RESET
Read/Write
Addressing Mode
.7–.6
.5–.4
.3–.2
.1–.0
4-30
.7
.6
0
0
R/W
R/W
Register addressing mode only
P4.3/SEG19 Mode Selection Bits
0
0
Input mode
0
1
Input mode, pull-up
1
0
Open-drain output mode
1
1
Push-pull output mode
P4.2/SEG18 Mode Selection Bits
0
0
Input mode
0
1
Input mode, pull-up
1
0
Open-drain output mode
1
1
Push-pull output mode
P4.1/SEG17 Mode Selection Bits
0
0
Input mode
0
1
Input mode, pull-up
1
0
Open-drain output mode
1
1
Push-pull output mode
P4.0/SEG16 Mode Selection Bits
0
0
Input mode
0
1
Input mode, pull-up
1
0
Open-drain output mode
1
1
Push-pull output mode
S3C8248/C8245/P8245/C8247/C8249/P8249
.5
.4
0
0
R/W
R/W
R/W
EDH
Set 1, Bank 1
.3
.2
.1
0
0
0
R/W
R/W
.0
0
R/W
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