Datasheet

Section 8 I/O Ports
Rev. 3.00 Sep. 28, 2009 Page 163 of 710
REJ09B0384-0300
8.9.2 Port A Output Data Register (PAODR)
PAODR stores output data for the port A pins.
Bit Bit Name Initial Value R/W Description
7 PA7ODR 0 R/W
6 PA6ODR 0 R/W
5 PA5ODR 0 R/W
4 PA4ODR 0 R/W
3 PA3ODR 0 R/W
2 PA2ODR 0 R/W
1 PA1ODR 0 R/W
PAODR stores output data for the port A pins that are
used as the general output port.
0 PA0ODR 0 R/W
8.9.3 Port A Input Data Register (PAPIN)
PAPIN indicates the pin states.
Bit Bit Name Initial Value R/W Description
7 PA7PIN Undefined* R
6 PA6PIN Undefined* R
5 PA5PIN Undefined* R
4 PA4PIN Undefined* R
3 PA3PIN Undefined* R
2 PA2PIN Undefined* R
1 PA1PIN Undefined* R
When a PAPIN read is performed, the pin states are
always read.
This register is assigned to the same address as that
of PADDR. When this register is written to, data is
written to PADDR and the port A setting is then
changed.
0 PA0PIN Undefined* R
Note: The initial values are determined in accordance with the pin states of PA7 to PA0.