ABOV SEMICONDUCTOR MC81F4204 - Page 72

MC81F4204
72 April 24, 2012 Ver.1.41
PUR1
R1 PORT PULL-UP ENABLE REGISTER 00D6H
Using the PUR1 register, you can configure pull-up resistors to individual R17-R10 pins.
7 6 5 4 3 2 1 0
PUR1
- - - PUR14 PUR13 PUR12 PUR11 PUR10
Reset value: 00H
R/W R/W R/W R/W R/W R/W R/W R/W
-
bit7 – bit5 Not used for MC81F4204
0: Disable pull-up resistor
PUR14
R14 Pull-up Resistor Enable Bit
1: Enable pull-up resistor
0: Disable pull-up resistor
PUR13
R13 Pull-up Resistor Enable Bit
1: Enable pull-up resistor
0: Disable pull-up resistor
PUR12
R12 Pull-up Resistor Enable Bit
1: Enable pull-up resistor
0: Disable pull-up resistor
PUR11
R11 Pull-up Resistor Enable Bit
1: Enable pull-up resistor
0: Disable pull-up resistor
PUR10
R10 Pull-up Resistor Enable Bit
1: Enable pull-up resistor
R1
R1 PORT DATA REGISTER 00C1H
7 6 5 4 3 2 1 0
R1
- - - R14 R13 R12 R11 R10
R/W R/W R/W R/W R/W R/W R/W R/W
Reset value:
---0_0000b
In input mode, it represents the R1 port status.
In output mode, R1 port represents it.
1: High
0: Low