HD6432646 Hitachi, HD6432646 Datasheet - Page 324

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

9.15.2
Table 9-32 shows the port J register configuration.
Table 9-32 Port J Registers
Name
Port J data direction register
Port J data register
Port J register
Note: * Lower 16 bits of the address
Port J Data Direction Register (PJDDR)
PJDDR is an 8-bit write-only register, the individual bits of which specify input or output for the
pins of port J. PJDDR cannot be read. If it is, an undefined value will be read.
PJDDR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in
software standby mode.
Port J Data Register (PJDR)
PJDR is an 8-bit readable/writeable register that stores output data for the port J pins (PJ7 to PJ0).
PJDR is initialized to H'00 by a reset and in hardware standby mode. It retains its prior state in
software standby mode.
290
Bit
Initial value :
R/W
Bit
Initial value :
R/W
Register Configuration
:
:
:
:
PJ7DDR PJ6DDR PJ5DDR PJ4DDR PJ3DDR PJ2DDR PJ1DDR PJ0DDR
PJ7DR
R/W
W
7
0
7
0
PJ6DR
R/W
W
6
0
6
0
PJ5DR
R/W
W
5
0
5
0
Abbreviation
PJDDR
PJDR
PORTJ
PJ4DR
R/W
W
4
0
4
0
PJ3DR
R/W
R/W
W
R/W
R
W
3
0
3
0
PJ2DR
Initial Value
H'00
H'00
Undefined
R/W
W
2
0
2
0
PJ1DR
R/W
W
1
0
1
0
Address*
H'FC21
H'FC25
H'FC29
PJ0DR
R/W
W
0
0
0
0