SH7261 Datasheet, PDF (1085/1348 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 24 I/O Ports
Table 24.6 Port C Data Registers H and L (PCDRH and PCDRL) Read/Write Operations
PCIORH,
PCIORL
0
1
Pin Function
General input
Other than general
input
General output
Other than general
output
Read
Pin state
Pin state
Value of
PCDRH and
PCDRL
Value of
PCDRH and
PCDRHL
Write
The value is written to PCDRH and PCDRL
but there is no effect on the pin state.
The value is written to PCDRH and PCDRL
but there is no effect on the pin state.
The value written is output from the pin.
The value is written to PCDRH and PCDRL
but there is no effect on the pin state.
24.3.3 Port C Port Registers H and L (PCPRH and PCPRL)
PCPRH and PCPRL are 16-bit read-only registers in which bits PC25PR to PC0PR correspond to
pins PC25 to PC0. PCPRH and PCPRL are always read as the states of the pins regardless of the
PFC setting.
Bits 15 to 10 in PCPRH are reserved. These bits are read as 0. The write value should always be 0.
• Port C Port Register H (PCPRH)
Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
—
—
—
—
—
—
PC25 PC24 PC23 PC22 PC21 PC20 PC19 PC18 PC17 PC16
PR PR PR PR PR PR PR PR PR PR
Initial value: 0 0 0 0 0 0 PC25 PC24 PC23 PC22 PC21 PC20 PC19 PC18 PC17 PC16
R/W: R R R R R R R R R R R R R R R R
• Port C Port Register L (PCPRL)
Bit: 15 14 13 12 11 10 9
PC15 PC14 PC13 PC12 PC11 PC10 PC9
PR PR PR PR PR PR PR
Initial value: PC15 PC14 PC13 PC12 PC11 PC10 PC9
R/W: R R R R R R R
8
PC8
PR
PC8
R
7
PC7
PR
PC7
R
6
PC6
PR
PC6
R
5
PC5
PR
PC5
R
4
PC5
PR
PC5
R
3
PC3
PR
PC3
R
2
PC2
PR
PC2
R
1
PC1
PR
PC1
R
0
PC0
PR
PC0
R
Rev. 2.00 Sep. 07, 2007 Page 1053 of 1312
REJ09B0320-0200