Datasheet
Section 9 I/O Ports
Rev.4.00 Nov. 02, 2005 Page 114 of 304
REJ09B0143-0400
9.6.1 Port Data Register B (PDRB)
PDRB is a general input-only port data register of port B.
Bit Bit Name Initial Value R/W Description
7
6
5
4
Reserved
3
2
1
0
PB3
PB2
PB1
PB0
R
R
R
R
The input value of each pin is read by reading this register.
However, if a port B pin is designated as an analog input
channel by ADCSR in A/D converter, 0 is read.