SH7763 Datasheet, PDF (1802/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 40 General Purpose I/O (GPIO)
40.2.31 Port I Pull-Up Control Register (PIPUPR)
PIPUPR is an 8-bit readable/writable register. Each bit of this register corresponds to PTI7 to
PTI0, and when the pins of Port I 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 PICR.
Bit: 7
6
5
4
3
2
1
0
—
—
—
—
—
— PI1PUPR PI0PUPR
Initial value: 1
1
1
1
1
1
1
1
R/W: R
R
R
R
R
R R/W R/W
Initial
Bit
Bit Name value R/W Description
7 to 2 —
All 1 R
Reserved
These bits are always read as 1, and the write value
should always be 1.
1
PI1PUPR 1
R/W Controls pull-up of the PTI1 pin
0: PTI1 pin pull-up off
1: PTI1 pin pull-up on
0
PI0PUPR 1
R/W Controls pull-up of the PTI0 pin
0: PTI0 pin pull-up off
1: PTI0 pin pull-up on
Rev. 1.00 Oct. 01, 2007 Page 1736 of 1956
REJ09B0256-0100