HD6417706 RENESAS [Renesas Technology Corp], HD6417706 Datasheet - Page 530

• Manufacturer Part Number: HD6417706
• Description: Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

18.4.1
Port D has the following register. Refer to section 23, List of Registers, for more details of the
addresses and access sizes.
18.4.2
Port D data register (PDDR) is an 8-bit read/write register that stores data for pins PTD7 to PTD0.
PD7DT to PD0DT bit corresponds to PTD7 to PTD0 pin. When the pin function is general output
port, if the port is read, the value of the corresponding PDDR bit is returned directly. When the
function is general input port, if the port is read, the corresponding pin level is read.
PDDR is initialized to H'00 by a power-on reset. It retains its previous value in standby mode and
sleep mode, and in a manual reset.
Table 18.4
Rev. 4.00, 03/04, page 484 of 660
Bit
7
6
5
4
3
2
1
0
PDnMD1 PDnMD0 Pin State
0
1
Port D data register (PDDR)
Register Description
Port D Data Register (PDDR)
Bit Name
PD7DT
PD6DT
PD5DT
PD4DT
PD3DT
PD2DT
PD1DT
PD0DT
0
1
0
1
Read/Write Operation of the Port D Data Register (PDDR)
Other function PDDR value
Output
Input (Pull-up
MOS: on)
Input (Pull-up
MOS: off)
Initial Value R/W
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Read
PDDR value
Pin state
Pin state
Description
Table 18.4 shows the function of PDDR.
Write
Value is written to PDDR, but does not affect
pin state.
Write value is output from pin.
Value is written to PDDR, but does not affect
pin state.
Value is written to PDDR, but does not affect
pin state.
(n = 0 to 7)