Datasheet
Appendix 
Page 1338 of 1384    R01UH0310EJ0500 Rev. 5.00 
 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 
P51/BREQ-B 1, 2, 3, 4, 7  T  T  [BREQ-B input] 
T 
[Other than the 
above] 
Keep 
[BREQ-B input] 
BREQ-B 
[Other than the 
above] 
Keep 
[BREQ-B input] 
BREQ-B 
[Other than the 
above] 
I/O port 
P50/ 
BREQO-B 
1, 2, 3, 4, 7  T  T  [BREQO-B output]
BREQO-B 
[Other than the 
above] 
Keep 
[BREQO-B output]
BREQO-B 
[Other than the 
above] 
Keep 
[BREQO-B output] 
BREQO-B 
[Other than the 
above] 
I/O port 
Port 6  1, 2, 3, 4, 7  T  T  Keep  Keep  I/O port 
Port 8  1, 2, 3, 4, 7  T  T  Keep  Keep  I/O port 
P97 to P96  1, 2, 3, 4, 7  T  T  T  T  Input port 
P95/DA3  1, 2, 3, 4, 7  T  T  [DAOE3 = 1] 
Keep 
[DAOE3 = 0] 
T 
Keep Input port 
P94/DA2  1, 2, 3, 4, 7  T  T  [DAOE2 = 1] 
Keep 
[DAOE2 = 0] 
T 
Keep Input port 
P93 to P90  1, 2, 3, 4, 7  T  T  T  T  Input port 
PA7/A23 
PA6/A22 
PA5/A21 
1, 2, 3, 4, 7  T  T  [Address output, 
OPE = 0] 
T 
[Address output, 
OPE = 1] 
Keep 
[Other than the 
above] 
Keep 
[Address output] 
T 
[Other than the 
above] 
Keep 
[Address output] 
A23 to A21 
[Other than the 
above] 
I/O port 










