HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 857

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

Table D-1 Port States (cont)
Pin
Name
P5
P6
P6
P6
P6
P7
P8
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: * The bus cannot be released in mode 7.
3
0
1
2
6
7
0
to P5
to P6
to P7
High
Low
High-impedance state
0
3
0
Mode
1 to 4
5, 6
7
1 to 6
7
1 to 6
7
1 to 6
7
1 to 6
7
1 to 7
1 to 6
7
Reset
L
T
T
T
T
T
T
T
T
H*
T
T
T
T
3
Hardware Software
Standby
Mode
T
T
T
T
T
T
T
T
T
T
T
T
T
T
850
Standby
Mode
T
keep
T
keep
keep
keep
keep
(BRLE = 0)
T
(BRLE = 1)
keep
keep
(BRLE = 0)
H
(BRLE = 1)
keep
T
keep
T
keep
(RFSHE = 0) (RFSHE = 0) (RFSHE = 0)
RFSH
(RFSHE = 1) (RFSHE = 1) (RFSHE = 1)
keep
Bus-
Released
Mode
T
T
T
—
keep
—
T
—
L
—
T
—
T*
keep
H
—
Program
Execution,
Sleep Mode
A
Input port
(DDR = 0)
A
(DDR = 1)
I/O port
I/O port
WAIT
I/O port
I/O port
BREQ
I/O port
I/O port
(BRLE = 0)
or BACK
(BRLE = 1)
I/O port
AS, RD,
HWR, LWR
I/O port
Input port
I/O port
or RFSH
I/O port
19
19
to A
to A
16
16