Samsung C8278X ユーザーズマニュアル
CONTROL REGISTERS
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
4-32
P3CONL
— Port 3 Control Register (Low Byte)
EEH
Set 1, Bank 0
Bit
Identifier
.7 .6 .5 .4 .3 .2 .1 .0
Reset Value
0 0 0 0 0 0 0 0
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W
Addressing Mode
Register addressing mode only
.7–.6
P3.3/SEG20 Configuration Bits
0 0
Input
mode
0
1
N-channel open-drain output mode
1
0
Push-pull output mode
1
1
Alternative function (SEG20)
.5–.4
P3.2/SEG21 Configuration Bits
0 0
Input
mode
0
1
N-channel open-drain output mode
1
0
Push-pull output mode
1
1
Alternative function (SEG21)
.3–.2
P3.1/SEG22 Configuration Bits
0 0
Input
mode
0
1
N-channel open-drain output mode
1
0
Push-pull output mode
1
1
Alternative function (SEG22)
.1–.0
P3.0/SEG23 Configuration Bits
0 0
Input
mode
0
1
N-channel open-drain output mode
1
0
Push-pull output mode
1
1
Alternative function (SEG23)