r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1446

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

28. General Purpose I/O Ports (GPIO)
28.2.16 Port R Control Register (PRCR)
PRCR is a 16-bit readable/writable register that selects the pin function and controls the input pull-
up MOS.
Rev.1.00 Jan. 10, 2008 Page 1416 of 1658
REJ09B0261-0100
Initial value:
Bit
15 to 8
7
6
5
4
R/W:
Bit:
Bit Name
⎯
PR3MD1
PR3MD0
PR2MD1
PR2MD0
R/W
15
—
0
R/W
14
—
0
R/W
13
—
0
Initial
value
All 0
0
0
0
0
R/W
12
—
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
11
—
0
R/W
10
—
0
Description
Reserved
These bits are always read as 0, and the write value
should always be 0.
PR3 Mode
00: LBSC/PCIC module (WE7/CBE3)*
01: Port output
10: Port input (pull-up MOS: Off)
11: Port input (pull-up MOS: On)
PR2 Mode
00: LBSC/PCIC module (WE6/CBE2)*
01: Port output
10: Port input (pull-up MOS: Off)
11: Port input (pull-up MOS: On)
R/W
—
9
0
When the bus mode is set to DU via the bus-mode
pins (MODE11 and MODE12), port input (pull-up
MOS: On) is selected.
When the bus mode is set to DU via the bus-mode
pins (MODE11 and MODE12), port input (pull-up
MOS: On) is selected.
R/W
—
8
0
R/W
MD1
PR3
7
0
R/W
MD0
PR3
6
0
R/W
MD1
PR2
5
0
R/W
MD0
PR2
4
0
R/W
MD1
PR1
3
0
R/W
MD0
PR1
2
0
R/W
MD1
PR0
1
0
R/W
MD0
PR0
0
0