Datasheet

Section 10 I/O Ports
Rev.7.00 Mar. 18, 2009 page 514 of 1136
REJ09B0109-0700
10.10.2 Port B Data Register (PBDR)
PBDR is stores output data for the port B pins.
Bit Bit Name Initial Value R/W Description
7 PB7DR 0 R/W
6 PB6DR 0 R/W
5 PB5DR 0 R/W
4 PB4DR 0 R/W
3 PB3DR 0 R/W
2 PB2DR 0 R/W
1 PB1DR 0 R/W
An output data for a pin is stored when the pin
function is specified to a general purpose I/O.
0 PB0DR 0 R/W
10.10.3 Port B Register (PORTB)
PORTB shows port B pin states. PORTB cannot be modified.
Bit Bit Name Initial Value R/W Description
7 PB7 ⎯* R
6 PB6 ⎯* R
5 PB5 ⎯* R
4 PB4 ⎯* R
3 PB3 ⎯* R
2 PB2 ⎯* R
1 PB1 ⎯* R
If this register is read is 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.
0 PB0 ⎯* R
Note: * Determined by the states of pins PB7 to PB0.