h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 236

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 9 I/O Ports
9.7.2
PADR stores output data for the port A pins.
9.7.3
PORTA shows the pin states. It cannot be modified.
Note:
Rev. 2.00 Dec. 05, 2005 Page 198 of 724
REJ09B0200-0200
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
*
Port A Data Register (PADR)
Port A Register (PORTA)
Bit Name
PA7DR
PA6DR
PA5DR
PA4DR
PA3DR
PA2DR
PA1DR
PA0DR
Bit Name
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Determined by state of pins PA7 to PA0.
Initial
Value
0
0
0
0
0
0
0
0
Initial
Value
*
*
*
*
*
*
*
*
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
Description
An output data for a pin is stored when the pin function
is specified to a general purpose output port.
Description
If this register read is performed while PADDR bits are
set to 1, the PADR values are read. If this register read
is performed while PADDR bits are cleared to 0, the pin
states are read.