r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1464

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

28. General Purpose I/O Ports (GPIO)
28.2.33 Port E Pull-Up Control Register (PEPUPR)
PEPUPR is an 8-bit readable/writable register that performs the pull-up control for each of the port
E3 and E0 (PE3 and PE0) pins when the pins are used by peripheral modules. When the port E
pins are used by the GPIO, the setting for this register is ignored.
Rev.1.00 Jan. 10, 2008 Page 1434 of 1658
REJ09B0261-0100
Bit
7 to 4
3
2 and 1
0
Bit Name
—
PE3PUPR
—
PE0PUPR
Initial value:
Initial
value
All 1
1
All 1
1
R/W:
Bit:
R/W
R/W
R/W
R/W
R/W
R/W
—
7
1
R/W
—
6
1
Description
Reserved
These bits are always read as 1, and the write value
should always be 1.
Pull-up of the Port E3 pin can be controlled
independently.
0: PE3 pull-up off
1: PE3 pull-up on
Reserved
These bits are always read as 1, and the write value
should always be 1.
Pull-up of the Port E0 pin can be controlled
independently.
0: PE0 pull-up off
1: PE0 pull-up on
R/W
—
5
1
R/W
—
4
1
PUPR
R/W
PE3
3
1
R/W
—
2
1
R/W
—
1
1
PUPR
R/W
PE0
0
1