Datasheet
Section 10 I/O Ports 
Page 586 of 1384    R01UH0310EJ0500 Rev. 5.00 
 Sep 25, 2012 
H8S/2426, H8S/2426R, H8S/2424 Group
10.6  Port 6 
Note:  Port 6 is not supported in the H8S/2424 Group. 
Port 6 is a 6-bit I/O port that also has other functions. Port 6 has the following registers. For the 
port function control registers, refer to section 10.18, Port Function Control Registers. 
•  Port 6 data direction register (P6DDR) 
•  Port 6 data register (P6DR) 
•  Port 6 register (PORT6) 
•  Port 6 open drain control register (P6ODR) 
•  Port function control register 3 (PFCR3) 
10.6.1  Port 6 Data Direction Register (P6DDR) 
The individual bits of P6DDR specify input or output for the pins of port 6. P6DDR cannot be 
read; if it is, an undefined value will be read. 
Bit  Bit Name  Initial Value  R/W  Description 
7, 6  ⎯ All 0 ⎯ Reserved 
5 P65DDR 0  W 
4 P64DDR 0  W 
3 P63DDR 0  W 
2 P62DDR 0  W 
1 P61DDR 0  W 
0 P60DDR 0  W 
When a pin function is specified as a general 
purpose I/O, setting this bit to 1 makes the 
corresponding pin an output port, while clearing this 
bit to 0 makes the corresponding pin an input port. 










