Samsung F8275X Computer Hardware User Manual


 
CONTROL REGISTERS S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
4-28
P2CONH — Port 2 Control Register (High Byte) EAH 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 P2.7/SEG24 Configuration Bits
0 0 Input mode
0 1 N-channel open-drain output mode
1 0 Push-pull output mode
1 1 Alternative function (SEG24)
.5-.4 P2.6/SEG25 Configuration Bits
0 0 Input mode
0 1 N-channel open-drain output mode
1 0 Push-pull output mode
1 1 Alternative function (SEG25)
.3–.2 P2.5/SEG26 Configuration Bits
0 0 Input mode
0 1 N-channel open-drain output mode
1 0 Push-pull output mode
1 1 Alternative function (SEG26)
.1–.0 P2.4/SEG27 Configuration Bits
0 0 Input mode
0 1 N-channel open-drain output mode
1 0 Push-pull output mode
1 1 Alternative function (SEG27)