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P8DDR is initialized to H'E0 or H'F0 by a reset and in hardware standby mode. The reset value
depends on the operating mode. In software standby mode P8DDR retains its previous setting. If a
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P8DDR bit is set to 1, the corresponding pin maintains its output state in software standby mode.
Port 8 Data Register (P8DR): P8DR is an 8-bit readable/writable register that stores output data
for pins P8
to P8
. When a bit in P8DDR is set to 1, if port 8 is read the value of the
4
0
corresponding P8DR bit is returned. When a bit in P8DDR is cleared to 0, if port 8 is read the
corresponding pin level is read.
Bit
Initial value
Read/Write
Bits 7 to 5 are reserved. They cannot be modified and always are read as 1.
P8DR is initialized to H'E0 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
7
6
5
—
—
—
1
1
1
—
—
—
Reserved bits
4
3
2
P8
P8
P8
4
3
0
0
0
R/W
R/W
R/W
Port 8 data 4 to 0
These bits store data
for port 8 pins
269
1
0
P8
P8
2
1
0
0
0
R/W
R/W
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