HD64F38602R Datasheet, PDF (166/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 8 I/O Ports
8.4.3 Port Open-Drain Control Register 9 (PODR9)
PODR9 selects the output format for port 9 pins.
Initial
Bit
Bit Name Value R/W
7 to 4 


3
P93ODR 0
R/W
2
P92ODR 0
R/W
1
P91ODR 0
R/W
0
P90ODR 0
R/W
Description
Reserved
The read value is undefined. These bits cannot be
modified.
When a bit among the P93ODR to P90ODR bits is set
to 1, the corresponding pin among P93 to P90 functions
as the NMOS open-drain output. When cleared to 0, the
corresponding pin functions as the CMOS output.
8.4.4 Port Pull-Up Control Register 9 (PUCR9)
PUCR9 controls the pull-up MOS of the port 9 pins in bit units.
Initial
Bit
Bit Name Value R/W
7 to 4 


3
PUCR93 0
R/W
2
PUCR92 0
R/W
1
PUCR91 0
R/W
0
PUCR90 0
R/W
Description
Reserved
The read value is undefined. These bits cannot be
modified.
When a PCR9 bit is cleared to 0, setting the
corresponding PUCR9 bit to 1 turns on the pull-up MOS
for the corresponding pin, while clearing the bit to 0
turns off the pull-up MOS.
Rev. 3.00 May 15, 2007 Page 134 of 516
REJ09B0152-0300