Table of Contents
Advertisement
7.3.2
Port Control Register 1 (PTCNT1)
PTCNT1 selects ports that also function as IIC input/output pins.
Bit
Bit Name
Initial Value
7
IIC1BS
0
6
IIC1AS
0
4
0
5
0
3
IIC0BS
0
2
IIC0AS
0
1
0
0
0
Note: Do not set input/output of IIC_0 and IIC_1 for one pin at the same time.
R/W
Description
R/W
These bits select input/output pins for IIC_1
R/W
IIC1BS
IIC1AS
0
0:
0
1:
1
0:
1
1:
R/W
Reserved
The initial value should not be changed.
R/W
These bits select input/output pins for IIC_0
R/W
IIC0BS
IIC0AS
0
0:
0
1:
1
0:
1
1:
R/W
Reserved
R/W
The initial value should not be changed.
Section 7 I/O Ports
Selects P86/SCL1 and P42/SDA1
Selects PG5/ExSCLA and
PG4/ExSDAA
Selects PG7/ExSCLB and
PG6/ExSDAB
Setting prohibited
Selects P52/SCL0 and P97/SDA0
Selects PG5/ExSCLA and
PG4/ExSDAA
Selects PG7/ExSCLB and
PG6/ExSDAB
Setting prohibited
Rev. 1.00 Apr. 28, 2008 Page 195 of 994
REJ09B0452-0100
Advertisement
Table of Contents
