28. General Purpose I/O Ports (GPIO)
Rev.1.00 Jan. 10, 2008 Page 1414 of 1658
REJ09B0261-0100
28.2.15 Port Q Control Register (PQCR) PQCR is a 16-bit readable/writable register that selects the pin function and controls the input pull-up MOS.
01234567891011121315 14
0000000000000000
PQ0
MD0
PQ0
MD1
PQ1
MD0
PQ1
MD1
PQ2
MD0
PQ2
MD1
PQ3
MD0
PQ3
MD1
PQ4
MD0
PQ4
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 10 ⎯ All 0 R/W Reserved
These bits are always read as 0, and the write value
should always be 0.
9
8
PQ4MD1
PQ4MD0
0
0
R/W
R/W
PQ4 Mode
00: PCIC module (INTA)
When the bus mode is set to the local bus or DU via
the bus mode pins (MODE1 and MODE2), 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)
7
6
PQ3MD1
PQ3MD0
0
0
R/W
R/W
PQ3 Mode
00: PCIC module (GNT0/GNTIN)
When the bus mode is set to the local bus or DU via
the bus mode pins (MODE1 and MODE2), 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)