SH7785 Datasheet, PDF (1470/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

28. General Purpose I/O Ports (GPIO)
28.2.39 Port N Pull-Up Control Register (PNPUPR)
PNPUPR is an 8-bit readable/writable register that performs the pull-up control for each of the
port N7 to N0 (PN7 to PN0) pins when the port N pins are used by peripheral modules. When the
port N pins are used by the GPIO, the setting for this register is ignored.
Bit:
Initial value:
R/W:
7
6
5
4
3
2
1
0
PN7 PN6 PN5 PN4 PN3 PN2 PN1 PN0
PUPR PUPR PUPR PUPR PUPR PUPR PUPR PUPR
1
1
1
1
1
1
1
1
R/W R/W R/W R/W R/W R/W R/W R/W
Initial
Bit
Bit Name value R/W Description
7
PN7PUPR 1
R/W Pull-up of each Port N pin can be controlled
6
PN6PUPR 1
R/W ^{independently.}
5
PN5PUPR 1
R/W ^{0: PNn pull-up off}
1: PNn pull-up on
4
PN4PUPR 1
R/W
3
PN3PUPR 1
R/W
2
PN2PUPR 1
R/W
1
PN1PUPR 1
R/W
0
PN0PUPR 1
R/W
Note: n = 7 to 0
Rev.1.00 Jan. 10, 2008 Page 1440 of 1658
REJ09B0261-0100