Datasheet
Appendix 
R01UH0310EJ0500 Rev. 5.00    Page 1343 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 
PG5/ 
BACK-A 
1, 2, 3, 4, 7  T  T  [BACK-A output] 
BACK-A 
[Other than the 
above] 
Keep 
[BACK-A output] 
BACK-A 
[Other than the 
above] 
Keep 
[BACK-A output] 
BACK-A 
[Other than the 
above] 
I/O port 
PG4/ 
BREQO-A 
1, 2, 3, 4, 7  T  T  [BREQO-A output]
BREQO-A 
[Other than the 
above] 
Keep 
[BREQO-A output]
BREQO-A 
[Other than the 
above] 
Keep 
[BREQO-A output]
BREQO-A 
[Other than the 
above] 
I/O port 
PG3/CS3/ 
RAS3*
2
/ 
CAS*
1
PG2/CS2/ 
RAS2*
2
/ 
RAS*
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 










