Hitachi H8S/2678 Series Reference Manual page 312

MCU
Port Name Operating
Pin Name Mode
PF5/RD 1, 2, 4 to 6
PF4/HWR
7
PF3/LWR 1, 2, 4 to 6
7
PF2/LCAS 1, 2, 4 to 7
PF1/UCAS 1, 2, 4 to 7
PF0/WAIT 1, 2, 4 to 7
PG6/BREQ 1, 2, 4 to 7
PG5/BACK 1, 2, 4 to 7
Hardware
Standby Software
Reset Mode Standby Mode
H T [OPE = 0]
T
[OPE = 1]
H
[RD, HWR output,
T
OPE = 0]
T
[RD, HWR output,
OPE = 1]
H
[Otherwise]
keep
H T [LWR output, OPE = 0]
T
T [LWR output, OPE = 1]
H
[Otherwise]
keep
T T [LCAS output, OPE = 0]
T
[LCAS output, OPE = 1]
H
[Otherwise]
keep
T T [UCAS output, OPE = 0]
T
[UCAS output, OPE = 1]
H
[Otherwise]
keep
T T [WAIT input]
T
[Otherwise]
keep
T T [BREQ input]
T
[Otherwise]
keep
T T [BACK output]
BACK
[Otherwise]
keep
Program
Bus-Released Execution State
State Sleep Mode
RD, HWR
T
[RD, HWR
[RD,
HWR output]
output]
RD, HWR
T
[Otherwise] [Otherwise]
keep I/O port
[LWR output] [LWR output]
LWR
T
[Otherwise] [Otherwise]
keep I/O port
[LCAS output] [LCAS output]
LCAS
T
[Otherwise] [Otherwise]
keep I/O port
[UCAS output] [UCAS output]
UCAS
T
[Otherwise] [Otherwise]
keep I/O port
[WAIT input] [WAIT input]
WAIT
T
[Otherwise] [Otherwise]
keep I/O port
BREQ input
[BREQ input]
BREQ BREQ
[Otherwise]
I/O port
BACK
[BACK output]
BACK
[Otherwise]
I/O port
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