Port 2 Control Register - Samsung S3C80A5B User Manual

CONTROL REGISTERS
P2CON

— Port 2 Control Register

Bit Identifier
RESET Value
Read/Write
Addressing Mode
.7–.6
.5–.4
.3–.2
.1
.0
4-22
.7 .6
0 0
R/W R/W
Register addressing mode only
P2.2 Mode Selection Bits
0 0 C-MOS input mode
0 1 Open-drain output mode
1 0 Push-pull output mode
1 1 C-MOS input with pull up mode
P2.1 Mode Selection Bits
0 0 C-MOS input mode
0 1 Open-drain output mode
1 0 Push-pull output mode
1 1 C-MOS input with pull up mode
P2.0 Mode Selection Bits
0 0 C-MOS input mode
0 1 Open-drain output mode
1 0 Push-pull output mode
1 1 C-MOS input with pull up mode
P2.1 Alternative Function Selection Bits
0 Normal I/O function
0 REM/T0CK function
P2.0 Alternative Function Selection Bits
0 Normal I/O function
0 T0PWN function
.5 .4
0 0
R/W R/W R/W
F0H
.3 .2 .1
0 0 0
R/W R/W
S3C80A5B
Set 1
.0
0
R/W