r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1809

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

40.2.37 Port O Pull-Up Control Register (POPUPR)
POPUPR is an 8-bit readable/writable register. Each bit of this register corresponds to PTO7 to
PTO0, and when the pins of Port O are used by “other function”, pull-up control is performed for
the individual pins. The settings in this register are invalid for the pins specified to function as port
pins by POCR.
Bit
7
6
5
4
3
2
1
0
Bit Name
—
PO5PUPR
PO4PUPR
PO3PUPR
PO2PUPR
PO1PUPR
PO0PUPR
Initial value:
Initial
value
All 1
1
1
1
1
1
1
R/W:
Bit:
—
R
7
1
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
—
R
6
1
PO5PUPRPO4PUPRPO3PUPRPO2PUPRPO1PUPRPO0PUPR
Description
Reserved
These bits are always read as 1, and the write value
should always be 1.
Controls pull-up of the PTO5 pin
0: PTO5 pin pull-up off
1: PTO5 pin pull-up on
Controls pull-up of the PTO4 pin
0: PTO4 pin pull-up off
1: PTO4 pin pull-up on
Controls pull-up of the PTO3 pin
0: PTO3 pin pull-up off
1: PTO3 pin pull-up on
Controls pull-up of the PTO2 pin
0: PTO2 pin pull-up off
1: PTO2 pin pull-up on
Controls pull-up of the PTO1 pin
0: PTO1 pin pull-up off
1: PTO1 pin pull-up on
Controls pull-up of the PTO0 pin
0: PTO0 pin pull-up off
1: PTO0 pin pull-up on
R/W
5
1
R/W
4
1
R/W
3
1
Rev. 1.00 Oct. 01, 2007 Page 1743 of 1956
R/W
2
1
Section 40 General Purpose I/O (GPIO)
R/W
1
1
R/W
0
1
REJ09B0256-0100