r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1425

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

28.2.5
PECR is a 16-bit readable/writable register that selects the pin function and controls the input pull-
up MOS.
Initial value:
Bit
15 to 12 ⎯
11
10
9
8
7
6
R/W:
Bit:
Port E Control Register (PECR)
Bit Name
PE5MD1
PE5MD0
PE4MD1
PE4MD0
PE3MD1
PE3MD0
R/W
15
—
0
R/W
14
—
0
R/W
13
—
0
Initial
value
All 0
0
0
0
0
1
1
R/W
12
—
0
R/W
MD1
PE5
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
11
0
R/W
MD0
PE5
10
0
Description
Reserved
These bits are always read as 0, and the write value
should always be 0.
PE5 Mode
00: PCIC module (REQ1)
01: Port output
10: Port input (pull-up MOS: Off)
11: Port input (pull-up MOS: On)
PE4 Mode
00: PCIC module (REQ2)
01: Port output
10: Port input (pull-up MOS: Off)
11: Port input (pull-up MOS: On)
PE3 Mode
00: PCIC module (REQ3)*
01: Port output
10: Port input (pull-up MOS: Off)
11: Port input (pull-up MOS: On)
R/W
MD1
PE4
9
0
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.
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.
R/W
MD0
PE4
8
0
R/W
MD1
PE3
7
1
Rev.1.00 Jan. 10, 2008 Page 1395 of 1658
R/W
MD0
PE3
6
1
28. General Purpose I/O Ports (GPIO)
R/W
MD1
PE2
5
0
MD0
R/W
PE2
4
0
R/W
MD1
PE1
3
0
REJ09B0261-0100
R/W
MD0
PE1
2
0
R/W
MD1
PE0
1
1
R/W
MD0
PE0
0
1