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CONTROL REGISTERS S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
4-26
P1CONL — Port 1 Control Register (Low Byte) E8H 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 P1.3/INT3 Configuration Bits
0 0 Schmitt trigger input mode
0 1 N-channel open-drain output mode
1 0 Push-pull output mode
1 1 Not used for the S3C8275X/C8278X/C8274X
.5–.4 P1.2/SI Configuration Bits
0 0 Schmitt trigger input mode (SI)
0 1 N-channel open-drain output mode
1 0 Push-pull output mode
1 1 Not used for the S3C8275X/C8278X/C8274X
.3–.2 P1.1/SO Configuration Bits
0 0 Schmitt trigger input mode
0 1 N-channel open-drain output mode
1 0 Push-pull output mode
1 1 Alternative function (SO)
.1–.0 P1.0/SCK Configuration Bits
0 0 Schmitt trigger input mode (SCK)
0 1 N-channel open-drain output mode
1 0 Push-pull output mode
1 1 Alternative function (SCK)