r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 624

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 I/O Ports
10.10.2 Port B Data Register (PBDR)
PBDR stores output data for the port B pins.
10.10.3 Port B Register (PORTB)
PORTB shows the pin states of port B. PORTB cannot be modified.
Note:
Rev. 1.00 Sep. 19, 2008 Page 594 of 1342
REJ09B0467-0100
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Bit Name
PB7DR
PB6DR
PB5DR
PB4DR
PB3DR
PB2DR
PB1DR
PB0DR
Bit Name
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
*
Determined by the states of pins PB7 to PB0.
Initial Value
0
0
0
0
0
0
0
0
Initial Value
*
*
*
*
*
*
*
*
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
Description
Output data for a pin is stored when the pin function
is specified as a general purpose I/O.
Description
If this register is read while a PBDDR bit is set to 1,
the corresponding PBDR value is read. If this
register is read while a PBDDR bit is cleared to 0,
the corresponding pin state is read.