S3C8075 Datasheet, PDF (58/208 Pages) Samsung semiconductor – SAM87 family of 8-bit single-chip CMOS microcontrollers, 272-byte general purpose register area, 16-Kbyte internal program memory

CONTROL REGISTERS
S3C8075/P8075
P1CON — Port 1 Control Register
F1H
Bit Identifier
RESET Value
Read/Write
Addressing Mode
.7
.6
.5
.4
.3
.2
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
Register addressing mode only
.7–.4
P1.7–P1.4 Mode Selection Bits
0 0 x 0 Input
0 1 x 0 Input, pull-up
0 0 0 1 Output, push-pull
0 0 1 1 Output, open drain
0 1 1 1 Output, open drain, pull-up
1 x x x External interface (AD7–AD4)
.3–.0
P1.3–P1.0 Mode Selection Bits
0 0 x 0 Input
0 1 x 0 Input, pull-up
0 0 0 1 Output, push-pull
0 0 1 1 Output, open drain
0 1 1 1 Output, open drain, pull-up
1 x x x External interface (AD3–AD0)
Set 1, Bank 0
.1
0
R/W
.0
0
R/W
4-14