P3pur — port 3 pull-up control register, P3pur – Samsung S3C8275X User Manual
Page 103
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
CONTROL
REGISTER
4-33
P3PUR
—
Port 3 Pull-up Control Register
EFH
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
P3.7's Pull-up Resistor Enable Bit
0
Disable pull-up resistor
1
Enable pull-up resistor
.6
P3.6's Pull-up Resistor Enable Bit
0
Disable pull-up resistor
1
Enable pull-up resistor
.5
P3.5's Pull-up Resistor Enable Bit
0
Disable pull-up resistor
1
Enable pull-up resistor
.4
P3.4's Pull-up Resistor Enable Bit
0
Disable pull-up resistor
1
Enable pull-up resistor
.3
P3.3's Pull-up Resistor Enable Bit
0
Disable pull-up resistor
1
Enable pull-up resistor
.2
P3.2's Pull-up Resistor Enable Bit
0
Disable pull-up resistor
1
Enable pull-up resistor
.1
P3.1's Pull-up Resistor Enable Bit
0
Disable pull-up resistor
1
Enable pull-up resistor
.0
P3.0's Pull-up Resistor Enable Bit
0
Disable pull-up resistor
1
Enable pull-up resistor
NOTE: A pull-up resistor of port 3 is automatically disabled only when the corresponding pin is selected as push-pull output
or
alternative
function.