Port B; Port Data Register B (Pdrb); Figure 9.6 Port B Pin Configuration - Renesas H8 Series Hardware Manual

9.6

Port B

Port B is an input port also functioning as an A/D converter analog input pin. Each pin of the port
B is shown in figure 9.6.
Port B has the following register.

• Port data register B (PDRB)

9.6.1 Port Data Register B (PDRB)
PDRB is a general input-only port data register of port B.
Bit Bit Name
7 PB7
6 PB6
5 PB5
4 PB4
3 PB3
2 PB2
1 PB1
0 PB0
Port B

Figure 9.6 Port B Pin Configuration

Initial
Value R/W Description

R The input value of each pin is read by reading this
register.

R
However, if a port B pin is designated as an analog input

R
channel by ADCSR in A/D converter, 0 is read.

R

R

R

R

R
PB7/AN7
PB6/AN6
PB5/AN5
PB4/AN4
PB3/AN3
PB2/AN2
PB1/AN1
PB0/AN0
Rev. 1.00 Aug. 28, 2006 Page 139 of 400
Section 9 I/O Ports
REJ09B0268-0100