HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 433

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

Port B Data Register (PBDR)
PBDR is an 8-bit readable/writable register that stores output data for the port B pins (PB
PBDR is initialized to H'00 by a reset, and in hardware standby mode. It retains its prior state in
software standby mode.
Port B Register (PORTB)
Note: * Determined by state of pins PB
PORTB is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of
output data for the port B pins (PB
If a port B read is performed while PBDDR bits are set to 1, the PBDR values are read. If a port B
read is performed while PBDDR bits are cleared to 0, the pin states are read.
After a reset and in hardware standby mode, PORTB contents are determined by the pin states, as
PBDDR and PBDR are initialized. PORTB retains its prior state in software standby mode.
Bit
Initial value :
R/W
Bit
Initial value :
R/W
:
:
:
:
PB7DR
R/W
PB7
— *
R
7
0
7
PB6DR
R/W
PB6
— *
R
6
0
6
7
to PB
PB5DR
7
to PB
R/W
PB5
— *
R
5
0
5
0
) must always be performed on PBDR.
0
.
PB4DR
R/W
PB4
— *
R
0
4
4
Rev.4.00 Sep. 07, 2007 Page 403 of 1210
PB3DR
R/W
PB3
— *
R
3
0
3
PB2DR
R/W
PB2
— *
R
2
0
2
PB1DR
REJ09B0245-0400
R/W
PB1
— *
R
1
0
1
7
PB0DR
to PB
R/W
PB0
— *
R
0
0
0
0
).