Abov MC97F60128 - P5 Port; P5 Port Description; Register Description for P5

97
MC97F60128
ABOV Semiconductor Co., Ltd.
9.8 P5 Port
9.8.1 P5 Port Description
P5 is 8-bit I/O port. P5 control registers consist of P5 data register (P5), P5 direction register (P5IO), P5 pull-up resistor
selection register (P5PU) and P5 open-drain selection register (P5OD) . Refer to the port function selection registers
for the P5 function selection.
9.8.2 Register description for P5
P5 (P5 Data Register): B0H
7
6
5
4
3
2
1
0
P57
P56
P55
P54
P53
P52
P51
P50
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P5[7:0]
I/O Data
P5IO (P5 Direction Register): B9H
7
6
5
4
3
2
1
0
P57IO
P56IO
P55IO
P54IO
P53IO
P52IO
P51IO
P50IO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P5IO[7:0]
P5 Data I/O Direction
0
Input
1
Output
NOTE)
1. RXD3/RXD4/SS1 function possible when input
P5PU (P5 Pull-up Resistor Selection Register): EFH
7
6
5
4
3
2
1
0
P57PU
P56PU
P55PU
P54PU
P53PU
P52PU
P51PU
P50PU
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P5PU[7:0]
Configure Pull-up Resistor of P5 Port
0
Disable
1
Enable
P5OD (P5 Open-drain Selection Register): 4015H (XSFR)
7
6
5
4
3
2
1
0
P57OD
P56OD
P55OD
P54OD
P53OD
P52OD
P51OD
P50OD
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P5OD[7:0]
Configure Open-drain of P5 Port
0
Push-pull output
1
Open-drain output