SH7203 Datasheet, PDF (1395/1686 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 26 I/O Ports
26.4.2 Port C Data Register L (PCDRL)
PCDRL is a 16-bit readable/writable register that stores port C data. The PC14DR to PC0DR bits
correspond to the PC14/WAIT to PC0/A0/CS7 pins, respectively.
When a pin function is general output, if a value is written to PCDRL, that value is output directly
from the pin, and if PCDRL is read, the register value is returned directly 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 26.6 summarizes PCDRL read/write operations.
Bit: 15
-
Initial value: 0
R/W: R
14
PC14
DR
0
R/W
13
PC13
DR
0
R/W
12
PC12
DR
0
R/W
11
PC11
DR
0
R/W
10
PC10
DR
0
R/W
9
PC9
DR
0
R/W
8
PC8
DR
0
R/W
7
PC7
DR
0
R/W
6
PC6
DR
0
R/W
5
PC5
DR
0
R/W
4
PC4
DR
0
R/W
3
PC3
DR
0
R/W
2
PC2
DR
0
R/W
1
PC1
DR
0
R/W
0
PC0
DR
0
R/W
Initial
Bit
Bit Name Value R/W Description
15
⎯
0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
14
PC14DR 0
R/W See table 26.6.
13
PC13DR 0
R/W
12
PC12DR 0
R/W
11
PC11DR 0
R/W
10
PC10DR 0
R/W
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. 2.00 Apr. 16, 2008 Page 1365 of 1652
REJ09B0313-0200