Port C Register (Portc); Port C Pull-Up Mos Control Register (Pcpcr); Port C Open-Drain Control Register (Pcodr) - Hitachi H8S/2628 Hardware Manual

9.8.3

Port C Register (PORTC)

PORTC is an 8-bit read-only register that shows port C pin states.
Bit Bit Name Initial Value
7 PC7 0
6 PC6 0
5 PC5 0
4 PC4 0
3 PC3 0
2 PC2 0
1 PC1 0
0 PC0 0
Note:* Determined by the states of pins PC7 to PC0.
9.8.4

Port C Pull-Up MOS Control Register (PCPCR)

PCPCR is an 8-bit readable/writable register that controls the on/off state of input pull-up MOS of
port C.
Bit Bit Name Initial Value
7 PC7PCR 0
6 PC6PCR 0
5 PC5PCR 0
4 PC4PCR 0
3 PC3PCR 0
2 PC2PCR 0
1 PC1PCR 0
0 PC0PCR 0
9.8.5

Port C Open-Drain Control Register (PCODR)

PCODR is an 8-bit readable/writable register that specifies an output type of port C.
Rev. 1.0, 09/02, page 148 of 568
R/W Description
R If a port C read is performed while PCDDR bits are
set to 1, the PCDR values are read. If a port C read
R
is performed while PCDDR bits are cleared to 0, the
R
pin states are read.
R
R
R
R
R
R/W Description
R/W When a pin is specified as an input port, setting the
corresponding bit to 1 turns on the input pull-up MOS
R/W
for that pin.
R/W
R/W
R/W
R/W
R/W
R/W