28. General Purpose I/O Ports (GPIO)
Rev.1.00 Jan. 10, 2008 Page 1395 of 1658
REJ09B0261-0100
28.2.5 Port E Control Register (PECR) PECR is a 16-bit readable/writable register that selects the pin function and controls the input pull-up MOS.
01234567891011121315 14
1100001100000000
PE0
MD0
PE0
MD1
PE1
MD0
PE1
MD1
PE2
MD0
PE2
MD1
PE3
MD0
PE3
MD1
PE4
MD0
PE4
MD1
PE5
MD0
PE5
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
PE5MD1
PE5MD0
0
0
R/W
R/W
PE5 Mode
00: PCIC module (REQ1)
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)
9
8
PE4MD1
PE4MD0
0
0
R/W
R/W
PE4 Mode
00: PCIC module (REQ2)
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
PE3MD1
PE3MD0
1
1
R/W
R/W
PE3 Mode
00: PCIC module (REQ3)*
01: Port output
10: Port input (pull-up MOS: Off)
11: Port input (pull-up MOS: On)