28. General Purpose I/O Ports (GPIO)
Rev.1.00 Jan. 10, 2008 Page 1412 of 1658
REJ09B0261-0100
28.2.14 Port P Control Register (PPCR) PPCR is a 16-bit readable/writable register that selects the pin function and controls the input pull-up MOS.
01234567891011121315 14
0000000000000000
PP0
MD0
PP0
MD1
PP1
MD0
PP1
MD1
PP2
MD0
PP2
MD1
PP3
MD0
PP3
MD1
PP4
MD0
PP4
MD1
PP5
MD0
PP5
MD1
——
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 12 All 0 R/W Reserved
These bits are always read as 0, and the write value
should always be 0.
11
10
PP5MD1
PP5MD0
0
0
R/W
R/W
PP5 Mode
00: PCIC/DU module (DEVSEL/DCLKOUT)*
When the bus mode is set to the local bus by the
bus mode pins (MODE11 and MODE12), port input
(pull-up MOS: On) is selected.
01: Port output
10: Port input (pull-up MOS: Off)
11: Port input (pull-up MOS: On)
9
8
PP4MD1
PP4MD0
0
0
R/W
R/W
PP4 Mode
00: PCIC/DU module (STOP/CDE)*
When the bus mode is set to the local bus by the
bus mode pins (MODE11 and MODE12), port input
(pull-up MOS: On) is selected.
01: Port output
10: Port input (pull-up MOS: Off)
11: Port input (pull-up MOS: On)