Datasheet
Section 10 I/O Ports 
Page 648 of 1384    R01UH0310EJ0500 Rev. 5.00 
 Sep 25, 2012 
H8S/2426, H8S/2426R, H8S/2424 Group
10.12.2  Port D Data Register (PDDR) 
PDDR stores output data for the port D pins. 
Bit  Bit Name  Initial Value  R/W  Description 
7 PD7DR  0  R/W 
6 PD6DR  0  R/W 
5 PD5DR  0  R/W 
4 PD4DR  0  R/W 
3 PD3DR  0  R/W 
2 PD2DR  0  R/W 
1 PD1DR  0  R/W 
0 PD0DR  0  R/W 
Output data for a pin is stored when the pin function 
is specified as a general purpose I/O. 
10.12.3  Port D Register (PORTD) 
PORTD shows the pin states of port D. PORTD cannot be modified. 
Bit  Bit Name  Initial Value  R/W  Description 
7 PD7  ⎯* R 
6 PD6  ⎯* R 
5 PD5  ⎯* R 
4 PD4  ⎯* R 
3 PD3  ⎯* R 
2 PD2  ⎯* R 
1 PD1  ⎯* R 
0 PD0  ⎯* R 
If this register is read while a PDDDR bit is set to 1, 
the corresponding PDDR value is read. If this 
register is read while a PDDDR bit is cleared to 0, 
the corresponding pin state is read. 
Note:  *  Determined by the states of pins PD7 to PD0. 










