Datasheet
Appendix 
R01UH0310EJ0500 Rev. 5.00    Page 1337 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
Appendix 
A.  Port States in Each Processing State 
Table A.1  Port States in Each Processing State (H8S/2426R Group and H8S/2426 Group) 
Port Name 
Pin Name 
MCU 
Operating 
Mode Reset 
Hardware 
Standby 
Mode 
Software Standby 
Mode 
Bus Release 
State 
Program 
Execution State 
Sleep Mode 
Port 1  1, 2, 3, 4, 7  T  T  Keep  Keep  I/O port 
P27 to P26  1, 2, 3, 4, 7  T  T  Keep  Keep  I/O port 
P25/WAIT  1, 2, 3, 4, 7  T  T  [WAIT-B input] 
T 
[Other than the 
above] 
Keep 
[WAIT-B input] 
T 
[Other than the 
above] 
Keep 
[WAIT-B input] 
WAIT-B 
[Other than the 
above] 
I/O port 
P24 to P20  1, 2, 3, 4, 7  T  T  Keep  Keep  I/O port 
P34 to P30  1, 2, 3, 4, 7  T  T  Keep  Keep  I/O port 
P35/OE-B*
2
/ 
CKE-B*
1
1, 2, 3, 4, 7  T  T  [OE-B, CKE-B 
output, OPE = 0] 
T 
[OE-B output, 
OPE = 1] 
H 
[CKE-B output, 
OPE = 1] 
L 
[Other than the 
above] 
Keep 
[OE-B, CKE-B 
output, OPE = 0] 
T 
[Other than the 
above] 
Keep 
[OE-B, CKE-B 
output, OPE = 0] 
OE-B, CKE-B 
[Other than the 
above] 
I/O port 
Port 4  1, 2, 3, 4, 7  T  T  T  T  Input port 
P53  1, 2, 3, 4, 7  T  T  Keep  Keep  I/O port 
P52/BACK-B  1, 2, 3, 4, 7  T  T  [BACK-B output] 
BACK-B 
[Other than the 
above] 
Keep 
[BACK-B output] 
BACK-B 
[Other than the 
above] 
Keep 
[BACK-B output] 
BACK-B 
[Other than the 
above] 
I/O port 










