Rev. 1.0, 09/02, page 153 of 568
9.9.2
Port D Data Register (PDDR)
PDDR is an 8-bit readable/writable register that stores output data for the port D pins.
Bit
Bit Name
Initial Value
R/W
Description
7 PD7DR 0
R/W
6 PD6DR 0
R/W
5 PD5DR 0
R/W
4 PD4DR 0
R/W
3 PD3DR 0
R/W
2 PD2DR 0
R/W
1 PD1DR 0
R/W
0 PD0DR 0
R/W
Output data for a pin is stored when the pin is
specified as a general purpose I/O port.
9.9.3
Port D Register (PORTD)
PORTD is an 8-bit read-only register that shows port D pin states.
Bit
Bit Name
Initial Value
R/W
Description
7 PD7
Undefined
*
R
6 PD6
Undefined
*
R
5 PD5
Undefined
*
R
4 PD4
Undefined
*
R
3 PD3
Undefined
*
R
2 PD2
Undefined
*
R
1 PD1
Undefined
*
R
0 PD0
Undefined
*
R
If a port D read is performed while PDDDR bits are
set to 1, the PDDR values are read. If a port D read
is performed while PDDDR bits are cleared to 0, the
pin states are read.
Note:
*
Determined by the states of pins PD7 to PD0.
9.9.4
Port D Pull-up MOS Control Register (PDPCR)
PDPCR is an 8-bit readable/writable register that controls on/off states of the input pull-up MOS
of port D.
Содержание H8S/2627
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