SH7280 Datasheet, PDF (1330/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 24 I/O Ports
24.3.2 Port C Data Register L (PCDRL)
PCDRL is a 16-bit readable/writable register that store port C data. In SH7243, SH7285 and
SH7286, Bits PC15DR to PC0DR, correspond to pins PC15 to PC0 (description of multiplexed
functions are abbreviated) respectively.
When a pin function is general output, if a value is written to PBDRL, the 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 24.6 summarizes read/write operations of port C data register.
Bit: 15
PC15
DR
Initial value: 0
R/W: R/W
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
PC15DR 0
R/W See table 24.6.
14
PC14DR 0
R/W
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. 1.00 Jun. 26, 2008 Page 1300 of 1692
REJ09B0393-0100