H8S2378 Datasheet, PDF (578/1203 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series

Section 10 I/O Ports
10.10.2 Port B Data Register (PBDR)
PBDR is stores output data for the port B pins.
Bit Bit Name
7 PB7DR
6 PB6DR
5 PB5DR
4 PB4DR
3 PB3DR
2 PB2DR
1 PB1DR
0 PB0DR
Initial Value R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Description
An output data for a pin is stored when the pin
function is specified to a general purpose I/O.
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
*
6 PB6
*
5 PB5
*
4 PB4
*
R
If this register is read is while PBDDR bits are set to
R
1, the PBDR values are read. If a port B read is
performed while PBDDR bits are cleared to 0, the
R
pin states are read.
R
3 PB3
*
R
2 PB2
*
R
1 PB1
*
R
0 PB0
*
R
Note: * Determined by the states of pins PB7 to PB0.
Rev. 6.00 Jul 19, 2006 page 514 of 1136
REJ09B0109-0600