Port 8 Data Register (P8Dr); Port 8 Register (Port8) - Renesas H8S/2368 Series Hardware Manual

16-bit single-chip microcomputer
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9.6.2

Port 8 Data Register (P8DR)

P8DR stores output data for the port 8 pins.
Bit
Bit Name
Initial Value
7
0
6
0
5
P85DR
0
4
0
3
P83DR
0
2
0
1
P81DR
0
0
0
9.6.3

Port 8 Register (PORT8)

PORT8 shows the pin states.
PORT8 cannot be modified.
Bit
Bit Name
Initial Value
7
Undefined
6
Undefined
5
P85
—*
4
Undefined
3
P83
—*
2
Undefined
1
P81
—*
0
Undefined
Note: * Determined by the states of pins P85, P83 and P81.
R/W
Description
Reserved
These bits are always read as 0 and cannot be
modified.
R/W
Bits 5, 3, and 1 store output data when the pin
function is specified to a general purpose I/O.
Bits 4, 2, and 0 are reserved.
R/W
R/W
R/W
Description
Reserved
These bits are reserved, if read they will return an
undefined value.
R
If a port 8 read is performed while P8DDR bits are
set to 1, the P8DR values are read. If a port 8 read is
R
performed while P8DDR bits are cleared to 0, the pin
R
states are read.
R
Bits 4, 2, and 0 are reserved.
R
R
Rev. 2.00, 05/03, page 337 of 820

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