Datasheet

Appendix
R01UH0309EJ0500 Rev. 5.00 Page 1369 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
Table A.2 Port States in Each Processing State (H8S/2454 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, P26 1, 2, 3, 4, 7 T T Keep Keep I/O port
P25/WAIT-B 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
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 1, 2, 3, 4, 7 T T [OE-B output,
OPE = 0]
T
[OE-B output,
OPE = 1]
H
[Other than the
above]
Keep
[OE-B output]
T
[Other than the
above]
Keep
[OE-B output]
OE
[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
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