36 port k pull-up control register (pkpupr) – Renesas SH7781 User Manual
Page 1467
28. General Purpose I/O Ports (GPIO)
Rev.1.00 Jan. 10, 2008 Page 1437 of 1658
REJ09B0261-0100
28.2.36
Port K Pull-Up Control Register (PKPUPR)
PKPUPR is an 8-bit readable/writable register that performs the pull-up control for each of the
port K7 to K0 (PK7 to PK0) pins when the port K pins are used by peripheral modules. When the
port K pins are used by the GPIO, the setting for this register is ignored.
0
1
2
3
4
5
6
7
1
1
1
1
1
1
1
1
PK0
PUPR
PK1
PUPR
PK2
PUPR
PK3
PUPR
PK4
PUPR
PK5
PUPR
PK6
PUPR
PK7
PUPR
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
Initial value:
R/W:
Bit Bit
Name
Initial
value R/W Description
7 PK7PUPR
1 R/W
6 PK6PUPR
1 R/W
5 PK5PUPR
1 R/W
4 PK4PUPR
1 R/W
3 PK3PUPR
1 R/W
2 PK2PUPR
1 R/W
1 PK1PUPR
1 R/W
Pull-up of each Port K pin can be controlled
independently.
0: PKn pull-up off
1: PKn pull-up on
0 PK0PUPR
1 R/W
Note: n = 7 to 0