Port 1 High-Byte Control Register (P1Conh); Port 1 Low-Byte Control Register (P1Conl) - Samsung S3C8275X User Manual

I/O PORTS
9-8
Port 1 Control Register, High Byte (P1CONH)
E7H, Set 1, Bank 0, R/W
MSB .7 .6 .5
P1.7/INT7 P1.6/INT6
P1CONH bit-pair pin configuration settings:
00 Schmitt trigger input mode
01 N-channel open-drain output mode
10 Push-pull output mode
11 Not available
Figure 9-7. Port 1 High-Byte Control Register (P1CONH)
Port 1 Control Register, Low Byte (P1CONL)
E8H, Set 1, Bank 0, R/W
MSB .7 .6 .5
P1.3/INT3 P1.2/SI
P1CONL bit-pair pin configuration settings:
00 Schmitt trigger input mode (SI, SCK)
01 N-channel open-drain output mode
10 Push-pull output mode
11 Alternative function (SCK, SO)
Figure 9-8. Port 1 Low-Byte Control Register (P1CONL)
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
.4 .3 .2 .1
P1.5/INT5 P1.4/INT4
.4 .3 .2 .1
P1.1/SO P1.0/SCK
.0 LSB
.0 LSB