Datasheet

Appendix
R01UH0309EJ0500 Rev. 5.00 Page 1363 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, 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
8-bit
bus
T T Keep Keep I/O port
Port E 3, 7
16-
bit
bus
T T [Data bus,
address/data
multiplexed bus]
T
[Other than the
above]
Keep
[Data bus,
address/data
multiplexed bus]
T
[Other than the
above]
Keep
[Data bus,
address/data
multiplexed bus]
D7 to D0,
AD7 to AD0
[Other than the
above]
I/O port
1, 2, 4 Clock
output
PF7/φ
3, 7 T
T [Clock output]
H
[Other than the
above]
Keep
[Clock output]
Clock output
[Other than the
above]
Keep
[Clock output]
Clock output
[Other than the
above]
Input port
1, 2, 4 H PF6/AS/AH
3, 7 T
T [AS output,
OPE = 0]
T
[AS output,
OPE = 1]
H
[Other than the
above]
Keep
[AS output]
T
[Other than the
above]
Keep
[AS output]
AS
[Other than the
above]
I/O port
1, 2, 4 H [OPE = 0] T
[OPE = 1] H
T RD, HWR PF5/RD
PF4/HWR
3, 7 T
T
[RD, HWR output,
OPE = 0]
T
[RD, HWR output,
OPE = 1]
H
[Other than the
above]
Keep
[RD, HWR output]
T
[Other than the
above]
Keep
[RD, HWR output]
RD, HWR
[Other than the
above]
I/O port