HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 287

• Manufacturer Part Number: HD6413003RVF
• Description: microcontroller (MCU)
• Manufacturer: RENESAS [Renesas Technology Corp]

Port B Data Direction Register (PBDDR): PBDDR is an 8-bit write-only register that can select
input or output for each pin in port B.
A pin in port B becomes an output pin if the corresponding PBDDR bit is set to 1, and an input
pin if this bit is cleared to 0.
PBDDR is a write-only register. Its value cannot be read. All bits return 1 when read.
PBDDR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting, so if a PBDDR bit is set to 1, the corresponding pin maintains its
output state in software standby mode.
Port B Data Register (PBDR): PBDR is an 8-bit readable/writable register that stores data for
pins PB
When a bit in PBDDR is set to 1, if port B is read the value of the corresponding PBDR bit is
returned directly. When a bit in PBDDR is cleared to 0, if port B is read the corresponding pin
level is read.
PBDR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
7
to PB
0
.
PB DDR
PB
R/W
7
W
7
0
0
7
7
PB DDR
R/W
PB
6
W
0
6
0
6
6
PB DDR
R/W
PB
5
W
0
5
0
5
Port B data direction 7 to 0
These bits select input or output for port B pins
5
Port B data 7 to 0
These bits store data for port B pins
PB DDR
269
PB
R/W
4
W
4
0
0
4
4
PB DDR
PB
R/W
3
W
3
0
0
3
3
PB DDR
PB
R/W
2
W
0
2
0
2
2
PB DDR
R/W
PB
1
W
0
1
0
1
1
PB DDR
PB
R/W
0
W
0
0
0
0
0