r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 892

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 21 I/O Ports
21.3.2
The port D data register L (PDDRL) is a 16-bit readable/writable register that stores port D data.
Bits PD10DR to PD0DR correspond to pins PD10 to PD0 (multiplexed functions omitted here).
When a pin function is general output, if a value is written to PDDRL, that value is output directly
from the pin, and if PDDRL is read, the register value is returned directly regardless of the pin
state.
When a pin function is general input, if PDDRL is read, the pin state, not the register value, is
returned directly. If a value is written to PDDRL, although that value is written into PDDRL, it
does not affect the pin state. Table 21.6 summarizes port D data register read/write operations.
Initial value:
Rev. 1.00 Sep. 21, 2007 Page 866 of 1124
REJ09B0402-0100
Bit
15 to 11
10
9
8
7
6
5
4
3
2
1
0
R/W:
Bit:
Port D Data Register L (PDDRL)
15
R
0
-
Bit Name

PD10DR
PD9DR
PD8DR
PD7DR
PD6DR
PD5DR
PD4DR
PD3DR
PD2DR
PD1DR
PD0DR
14
R
0
-
13
R
0
-
Initial
Value
All 0
0
0
0
0
0
0
0
0
0
0
0
12
R
0
-
11
R
0
-
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
10
R
0
-
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
See table 21.6.
R
9
0
-
R
8
0
-
R/W
PB7
DR
7
0
R/W
PB7
DR
6
0
R/W
PB5
DR
5
0
R/W
PB4
DR
4
0
R/W
PB3
DR
3
0
R/W
PB2
DR
2
0
R/W
PB1
DR
1
0
R/W
PB0
DR
0
0