SH7055S Datasheet, PDF (752/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

21.5.3 Port D Port Register (PDPR)
Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
– – PD13 PD12 PD11 PD10 PD9 PD8 PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0
PR PR PR PR PR PR PR PR PR PR PR PR PR PR
Initial value: 0 0 * * * * * * * * * * * * * *
R/W: R R R R R R R R R R R R R R R R
Note: * The initial value is 1 when the PD13 to PD0 pins are high, and it is 0 when the pins are low.
The port D port register (PDPR) is a 16-bit read-only register that always stores the value of the
port D pins. The CPU cannot write data to this register. Bits PD13PR to PD0PR correspond to
pins PD13/PULS6/HTxD0/HTxD1 to PD0/TIO1A. If PDPR is read, the corresponding pin values
are returned.
• Bits 15 and 14: Reserved: These bits are always read as 0.
• Bits 13 to 0: Port D13 to D0 Port Register (PD13PR to PD0PR)
PD13PR to PD0PR
0
1
Description
Low-level signals are output from or input to the PD13 to PD0 pins.
High-level signals are output from or input to the PD13 to PD0 pins.
Rev.2.0, 07/03, page 714 of 960