Port B Register (Portb); Port B Mos Pull-Up Control Register (Pbpcr) - Hitachi H8S/2215 Series Hardware Manual

9.7.3

Port B Register (PORTB)

PORTB shows port B pin states.
Bit Bit Name Initial Value
7 PB7 –*
6 PB6 –*
5 PB5 –*
4 PB4 –*
3 PB3 –*
2 PB2 –*
1 PB1 –*
0 PB0 –*
Note: * Determined by the status of pins PB7 to PB0.
9.7.4

Port B MOS Pull-Up Control Register (PBPCR)

PBPCR controls the on/off state of input pull-up MOS of port B.
Bit Bit Name Initial Value
7 PB7PCR 0
6 PB6PCR 0
5 PB5PCR 0
4 PB4PCR 0
3 PB3PCR 0
2 PB2PCR 0
1 PB1PCR 0
0 PB0PCR 0
R/W Description
R If the port B read is performed while PBDDR bits are set
to 1, the PBDR values are read. If a port B read is
R
performed while PBDDR bits are cleared to 0, the pin
R
states are read.
R
R
R
R
R
R/W Description
R/W When a pin functions specified to an input port, setting the
corresponding bit to 1 turns on the input pull-up MOS for
R/W
that pin.
R/W
R/W
R/W
R/W
R/W
R/W
Rev. 3.0, 10/02, page 239 of 686