r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1461

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

28.2.30 Port P Data Register (PPDR)
PPDR is an 8-bit readable/writable register that stores port P data.
Note:
Bit
7 and 6
5
4
3
2
1
0
*
Bit Name
⎯
PP5DT
PP4DT
PP3DT
PP2DT
PP1DT
PP0DT
When the bus mode is set to the local bus via the bus mode pins (MODE11 and
MODE12), the pin is initially used as a general-purpose input, and the pin status is read
from this register.
Initial value:
Initial
value
All 0
0*
0*
0*
0*
0*
0*
R/W:
Bit:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
—
7
0
R/W
—
6
0
Description
Reserved
These bits are always read as 0, and the write value
should always be 0.
These bits store output data of a pin which is used as a
general-purpose output port. When the pin functions as
a general-purpose output port, reading the port will read
out the value of the corresponding bit of this register.
When the pin functions as a general-purpose input port,
reading the port will read out the status of the
corresponding pin.
PP5DT
R/W
5
0
PP4DT
R/W
4
0
PP3DT
R/W
3
0
Rev.1.00 Jan. 10, 2008 Page 1431 of 1658
PP2DT
R/W
2
0
28. General Purpose I/O Ports (GPIO)
PP1DT
R/W
1
0
PP0DT
R/W
0
0
REJ09B0261-0100