Datasheet
Appendix 
R01UH0310EJ0500 Rev. 5.00    Page 1355 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
Port Name 
Pin Name 
MCU 
Operating 
Mode 
Reset 
Hardware 
Standby 
Mode 
Software 
Standby Mode 
Bus Release 
State 
Program 
Execution State 
Sleep Mode 
PG3/CS3/ 
RAS3*
1
PG2/CS2/ 
RAS2*
1
PG1/CS1 
1, 2, 3, 4, 7  T  T  [CS output, 
OPE = 0] 
T 
[CS output, 
OPE = 1] 
H 
[Other than the 
above] 
Keep 
[CS output] 
T 
[Other than the 
above] 
Keep 
[CS output] 
CS 
[Other than the 
above] 
I/O port 
1, 2  H PG0/CS0 
3, 4, 7  T 
T [CS output, 
OPE = 0] 
T 
[CS output, 
OPE = 1] 
H 
[Other than the 
above] 
Keep 
[CS output] 
T 
[Other than the 
above] 
Keep 
[CS output] 
CS 
[Other than the 
above] 
I/O port 
WDTOVF  1, 2, 4, 7  H  H  H  H  H*
2
[Legend] 
H: High-level 
L: Low-level 
Keep:  Input ports become high-impedance, and output ports retain their state. 
T: High-impedance 
DDR:  Data direction register 
OPE:  Output port enable 
Notes: 1.  Not supported in the 5-V version. 
 2.  Low output if a watchdog timer overflow occurs when WT/IT is set to 1. 










