Microcassette Recorder User Manual

CONTROL REGISTERS S3C9228/P9228
4-20
P1PUR –Port 1 Pull-up Resistors Enable Register F0H
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
RESETRESET Value
– – – – 0 0 0 0
Read/Write
– – – – R/W R/W R/W R/W
.7-.4
Not used for S3C9228/P9228
.3
P1.3's Pull-up Resistor Enable Bit
0 Disable pull-up resistor
1 Enable pull-up resistor
.2
P1.2's Pull-up Resistor Enable Bit
0 Disable pull-up resistor
1 Enable pull-up resistor
.1
P1.1's Pull-up Resistor Enable Bit
0 Disable pull-up resistor
1 Enable pull-up resistor
.0
P1.0's Pull-up Resistor Enable Bit
0 Disable pull-up resistor
1 Enable pull-up resistor