HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 858

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

Table D-1 Port States (cont)
Pin
Name
P8
P8
P9
PA
PA
PA
PB
PB
PB
Legend
H:
L:
T:
keep: Input pins are in the high-impedance state; output pins maintain their previous state.
DDR: Data direction register bit
Notes: 1. The bus cannot be released in mode 7.
3
4
6
3
6
7
7
0
6
, PB
to P8
to P9
to PA
to PA
High
Low
High-impedance state
2. Output is low only for reset by WDT overflow.
3. During direct power supply, oscillation damping time is “H” or “T”.
4. During direct power supply, oscillation damping time differs between “H”, “L” and “T”.
5
1
0
0
4
to
Mode
1 to 6
7
1 to 6
7
1 to 7
1 to 7
3, 4, 6
1, 2, 5, 7
3, 4, 6
1, 2, 5, 7
1 to 7
3, 4, 6
1, 2, 5, 7
Reset
T
T
L
T
T
T
T*
T*
L*
T
T
T
T
4
4
4
Hardware Software
Standby
Mode
T
T
T
T
T
T
T
T
T
T
T
T
T
851
Standby
Mode
T
(DDR = 0)
H
(DDR = 1)
keep
T
(DDR = 0)
L
(DDR = 1)
keep
keep
keep
H
(CS output) (CS output) (CS output)
T (address
output)
keep
(otherwise)
keep
T
keep
keep
H
(CS output) (CS output) (CS output)
keep
(otherwise)
keep
Bus-
Released
Mode
keep
(DDR = 0)
H
(DDR = 1)
—
keep
(DDR = 0)
H
(DDR = 1)
—
keep*
keep*
H
T (address A23 to A21
output)
keep
(otherwise) I/O port
keep*
T
keep*
keep*
H
keep
(otherwise) (otherwise)
keep*
1
1
1
1
1
1
Program
Execution,
Sleep Mode
Input port
(DDR = 0) or
CS
(DDR = 1)
I/O port
Input port
(DDR = 0)
or CS
(DDR = 1)
I/O port
I/O port
I/O port
CS6 to CS4
(address
output)
(otherwise)
I/O port
A
I/O port
I/O port
CS7
I/O port
I/O port
20
3
to CS
0
1