SH7205 Datasheet, PDF (1548/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 28 I/O Ports
28.2.5 Port C Data Register L (PCDRL)
PCDRL is a 16-bit readable/writable register that stores port C data. The PC10DR to PC0DR bits
correspond to the PC10 to PC0 pins, respectively.
When a pin function is general output, if a value is written to PCDRL, that value is output from
the pin, and if PCDRL is read, the register value is returned regardless of the pin state.
When a pin function is general input, if PCDRL is read, the pin state, not the register value, is
returned directly. If a value is written to PCDRL, although that value is written into PCDRL, it
does not affect the pin state. Table 28.4 summarizes PCDRL read/write operations.
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
PC10 PC9 PC8 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0
DR DR DR DR DR DR DR DR DR DR DR
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Initial
Bit
Bit Name Value R/W Description
15 to 11 —
All 0
R
Reserved
These bits are always read as 0 and cannot be
modified.
10
PC10DR 0
R/W See table 28.4.
9
PC9DR 0
R/W
8
PC8DR 0
R/W
7
PC7DR 0
R/W
6
PC6DR 0
R/W
5
PC5DR 0
R/W
4
PC4DR 0
R/W
3
PC3DR 0
R/W
2
PC2DR 0
R/W
1
PC1DR 0
R/W
0
PC0DR 0
R/W
Rev. 1.00 Mar. 25, 2008 Page 1516 of 1868
REJ09B0372-0100