Abov MC97F60128 User Manual

87
MC97F60128
ABOV Semiconductor Co., Ltd.
9.5 P2 Port
9.5.1 P2 Port Description
P2 is 8-bit I/O port. P2 control registers consist of P2 data register (P2), P2 direction register (P2IO), P2 pull-up resistor
selection register (P2PU) and P2 open-drain selection register (P2OD).Refer to the port function selection registers for
the P2 function selection.
9.5.2 Register description for P2
P2 (P2 Data Register): 90H
7
6
5
4
3
2
1
0
P27
P26
P25
P24
P23
P22
P21
P20
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P2[7:0]
I/O Data
P2IO (P2 Direction Register): B4H
7
6
5
4
3
2
1
0
P27IO
P26IO
P25IO
P24IO
P23IO
P22IO
P21IO
P20IO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P2IO[7:0]
P2 Data I/O Direction
0
Input
1
Output
NOTE)
1. SS3/EC3–EC4/TRIG/EXTSP0/EXTSP1 function
possible when input
P2PU (P2 Pull-up Resistor Selection Register): ECH
7
6
5
4
3
2
1
0
P27PU
P26PU
P25PU
P24PU
P23PU
P22PU
P21PU
P20PU
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P2PU[7:0]
Configure Pull-up Resistor of P2 Port
0
Disable
1
Enable
P2OD (P2 Open-drain Selection Register): 4012H (XSFR)
7
6
5
4
3
2
1
0
P27OD
P26OD
P25OD
P24OD
P23OD
P22OD
P21OD
P20OD
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: 00H
P2OD[7:0]
Configure Open-drain of P2 Port
0
Push-pull output
1
Open-drain output

Abov MC97F60128 Specifications

General

Brand	Abov
Model	MC97F60128
Category	Microcontrollers
Language	English