HD6417750RF240V Datasheet, PDF (179/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 9 I/O Ports
9.5.4 Port B Pull-Up MOS Control Register (PBPCR)
PBPCR is an 8-bit read/write register that controls the on/off state of MOS input pull-up of port B.
Bit Bit Name
7 PB7PCR
6 PB6PCR
5 PB5PCR
4 PB4PCR
3 PB3PCR
2 PB2PCR
1 PB1PCR
0 PB0PCR
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
When a pin is specified as an input port, setting the
corresponding bit to 1 turns on the MOS input pull-
up for that pin.
9.5.5 Port B Open-Drain Control Register (PBODR)
PBODR is an 8-bit read/write register that specifies the output type of port B.
Bit Bit Name
7 PB7ODR
6 PB6ODR
5 PB5ODR
4 PB4ODR
3 PB3ODR
2 PB2ODR
1 PB1ODR
0 PB0ODR
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
When a pin function is specified as an output port,
setting the corresponding bit to 1 specifies pin
output as open-drain and the PMOS input pull-up to
the off state. Clearing this bit to 0 specifies push-
pull output.
Rev. 7.00 Sep. 11, 2009 Page 143 of 566
REJ09B0211-0700