Samsung S3C9454B User Manual page 60

S3C9454B/F9454B
P2CONH
— Port 2 Control Register (High Byte)
Bit Identifier
RESET Value
Read/Write
.7
.6–.4
.3–.2
.1–.0
NOTE: When noise problem is important issue, you had better not use CLO output.
.7 .6
– 0
– R/W
Not used for the S3C9454B/F9454B
Port 2, P2.6/ADC8/CLO Configuration Bits
0 0 0 Schmitt trigger input; pull-up enable
0 0 1 Schmitt trigger input
0 1 x ADC input
1 0 0 Push-pull output
1 0 1 Open-drain output; pull-up enable
1 1 0 Open-drain output
1 1 1 Alternative function; CLO output
Port 2, 2.5 Configuration Bits
0 0 Schmitt trigger input; pull-up enable
0 1 Schmitt trigger input
1 0 Push-pull output
1 1 Open-drain output
Port 2, 2.4 Configuration Bits
0 0 Schmitt trigger input; pull-up enable
0 1 Schmitt trigger input
1 0 Push-pull output
1 1 Open-drain output
.5 .4
0 0
R/W R/W R/W
CONTROL REGISTERS
.3 .2 .1
0 0 0
R/W R/W
EAH
.0
0
R/W
4-13