HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 426

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Port A Open Drain Control Register (PAODR)
PAODR is an 8-bit readable/writable register that controls whether PMOS is on or off for each
port A pin (PA
PAODR is valid only in mode 7. Do not PAODR bits to 1 in modes 4 to 6.
Setting a PAODR bit to 1 makes the corresponding port A pin an NMOS open-drain output, while
clearing the bit to 0 makes the pin a CMOS output.
PAODR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in
software standby mode.
Port Function Control Register 1 (PFCR1)
PFCR1 is an 8-bit readable/writable register that performs I/O port control. PFCR1 is initialized to
H'0F by a reset, and in hardware standby mode.
Bits 7 to 4—Reserved: Only 0 should be written to these bits.
Bit 3—Address 23 Enable (A23E): Enables or disables address output 23 (A
in modes 4 to 6.
Bit 3
A23E
0
1
Rev.4.00 Sep. 07, 2007 Page 396 of 1210
REJ09B0245-0400
Bit
Initial value :
R/W
Bit
Initial value :
R/W
:
:
:
:
7
Description
DR is output when PA7DDR = 1
A
to PA
23
PA7ODR PA6ODR PA5ODR PA4ODR PA3ODR PA2ODR PA1ODR PA0ODR
is output when PA7DDR = 1
R/W
R/W
—
7
0
7
0
0
).
R/W
R/W
—
6
0
6
0
R/W
R/W
—
5
0
5
0
R/W
R/W
—
4
0
4
0
A23E
R/W
R/W
0
1
3
3
A22E
R/W
R/W
2
0
2
1
23
). This bit is valid
A21E
R/W
R/W
1
0
1
1
(Initial value)
A20E
R/W
R/W
0
0
0
1