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(2)
Port A Output Data Register (PAODR)
PAODR stores output data for the port A pins.
Bit
Bit Name
7
PA7ODR
6
PA6ODR
5
PA5ODR
4
PA4ODR
3
PA3ODR
2
PA2ODR
1
PA1ODR
0
PA0ODR
(3)
Port A Input Data Register (PAPIN)
PAPIN indicates the states of the port A pins.
Bit
Bit Name
7
PA7PIN
6
PA6PIN
5
PA5PIN
4
PA4PIN
3
PA3PIN
2
PA2PIN
1
PA1PIN
0
PA0PIN
Note: *
The initial values are determined in accordance with the pin states of PA7 to PA0.
Initial Value
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Initial Value
R/W
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Undefined*
R
Description
PAODR stores output data for the port A pins that are
used as the general output port.
Description
Pin states are read from this register.
As the address of this register is the same as that of
PADDR, writing to this register changes the settings
of port A, that have been written to PADDR.
Rev. 1.00 Mar. 12, 2008 Page 323 of 1178
Section 8 I/O Ports
REJ09B0403-0100
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