28. General Purpose I/O Ports (GPIO)
Rev.1.00 Jan. 10, 2008 Page 1441 of 1658
REJ09B0261-0100
28.2.40 Input-Pin Pull-Up Control Register 1 (PPUPR1) PPUPR1 is a 16-bit readable/writable register that performs the pull-up control for the pin corresponding to each bit of the register field.
01234567891011121315 14
1111111111111111
RDY
PUP
——
R/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/W R/W
Bit:
Initial value:
R/W:
Bit Bit Name
Initial
value R/W Description
15 to 3 All 1 R/W Reserved
These bits are always read as 1, and the write value
should always be 1.
2 RDYPUP 1 R/W Controls pull-up of the RDY pin
0: RDY pull-up off
1: RDY pull-up on
1 and 0 All 1 R/W Reserved
These bits are always read as 1, and the write value
should always be 1.
28.2.41 Input-Pin Pull-Up Control Register 2 (PPUPR2) PPUPR2 is a 16-bit readable/writable register that performs the pull-up control for the pin corresponding to each bit of the register field.
01234567891011121315 14
1111111111111111
IRL2
PUP
IRL3
PUP IRL0
PUP
IRL1
PUP
—— SIOF
UP1
NMI
PUP
CLK
PUP
SIOF
UP0
——
R/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/WR/W R/W
Bit:
Initial value:
R/W: