HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 856

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

D.1 Port States in Each Mode
Table D-1 Port States
Pin
Name
ø
RESO
P1
P2
P3
P4
Legend
H:
L:
T:
keep: Input pins are in the high-impedance state; output pins maintain their previous state.
DDR: Data direction register bit
Note: * Low output only when WDT overflow causes a reset.
7
7
7
7
to P1
to P2
to P3
to P4
High
Low
High-impedance state
0
0
0
0
Mode
—
—
1 to 4
5, 6
7
1 to 4
5, 6
7
1 to 6
7
1 to 6 8-bit bus
7
16-bit bus
Appendix D Pin States
Clock output T
T*
Reset
L
T
T
L
T
T
T
T
T
T
T
849
Hardware Software
Standby
Mode
T
T
T
T
T
T
T
T
T
T
T
T
Standby
Mode
H
T
T
keep
T
keep
T
keep
T
keep
T
keep
keep
T
keep
Bus-
Released
Mode
Clock output Clock output
T
T
T
T
—
T
T
T
—
T
—
keep
T
—
Program
Execution,
Sleep Mode
RESO
A
Input port
(DDR = 0)
A
(DDR = 1)
I/O port
A
Input port
(DDR = 0)
A
(DDR = 1)
I/O port
D
I/O port
I/O port
D
I/O port
7
7
15
15
15
7
to A
to A
to D
to A
to A
to D
0
0
0
8
8
8