Abov MC97F60128 User Manual

90
MC97F60128
ABOV Semiconductor Co., Ltd.
9.6 P3 Port
9.6.1 P3 Port Description
P3 is 8-bit I/O port. P3 control registers consist of P3 data register (P3), P3 direction register (P3IO), P3 pull-up resistor
selection register (P3PU) and open-drain selection register (P2OD). Refer to the port function selection registers for
the P3 function selection.
9.6.2 Register description for P3
P3 (P3 Data Register): 98H
7
6
5
4
3
2
1
0
P37
P36
P35
P34
P33
P32
P31
P30
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P3[7:0]
I/O Data
P3IO (P3 Direction Register): B5H
7
6
5
4
3
2
1
0
P37IO
P36IO
P35IO
P34IO
P33IO
P32IO
P31IO
P30IO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P3IO[7:0]
P3 Data I/O Direction
0
Input
1
Output
NOTE)
1. SS2 function possible when input
P3PU (P3 Pull-up Resistor Selection Register): EDH
7
6
5
4
3
2
1
0
P37PU
P36PU
P35PU
P34PU
P33PU
P32PU
P31PU
P30PU
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P3PU[7:0]
Configure Pull-up Resistor of P3 Port
0
Disable
1
Enable
P3OD (P1 Open-drain Selection Register): 4013H (XSFR)
7
6
5
4
3
2
1
0
P37OD
P36OD
P35OD
P34OD
P33OD
P32OD
P31OD
P30OD
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 08H
P3OD[7:0]
Configure Open-drain of P3 Port
0
Push-pull output
1
Open-drain output

Abov MC97F60128 Specifications

General

Brand	Abov
Model	MC97F60128
Category	Microcontrollers
Language	English