Datasheet
Section 10 I/O Ports 
R01UH0310EJ0500 Rev. 5.00    Page 611 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
10.9.2  Port A Data Register (PADR) 
PADR stores output data for the port A pins. 
Bit  Bit Name  Initial Value  R/W  Description 
7 PA7DR  0  R/W 
6 PA6DR  0  R/W 
5 PA5DR  0  R/W 
4 PA4DR  0  R/W 
3 PA3DR  0  R/W 
2 PA2DR  0  R/W 
1 PA1DR  0  R/W 
0 PA0DR  0  R/W 
Output data for a pin is stored when the pin function 
is specified as a general purpose I/O. 
10.9.3  Port A Register (PORTA) 
PORTA shows the pin states of port A. PORTA cannot be modified. 
Bit  Bit Name  Initial Value  R/W  Description 
7 PA7  ⎯* R 
6 PA6  ⎯* R 
5 PA5  ⎯* R 
4 PA4  ⎯* R 
3 PA3  ⎯* R 
2 PA2  ⎯* R 
1 PA1  ⎯* R 
0 PA0  ⎯* R 
If this register is read while a PADDR bit is set to 1, 
the corresponding PADR value is read. If this 
register is read while a PADDR bit is cleared to 0, 
the corresponding pin state is read. 
Note:  *  Determined by the states of pins PA7 to PA0. 










