HD6413002 Datasheet, PDF (262/700 Pages) Renesas Technology Corp – High-performance single-chip microcontroller

Port 6 Data Direction Register (P6DDR): P6DDR is an 8-bit write-only register that can select
input or output for each pin in port 6.
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
— P6₆DDR P6₅DDR P6₄DDR P6₃DDR P6₂DDR P6₁DDR P6₀DDR
1
0
0
0
0
0
0
0
—
W
W
W
W
W
W
W
Reserved bits
Port 6 data direction 2 to 0
These bits select input or
output for port 6 pins
A pin in port 6 becomes an output pin if the corresponding P6DDR bit is set to 1, and an input pin
if this bit is cleared to 0. Bits 7 to 3 are reserved.
P6DDR is a write-only register. Its value cannot be read. All bits return 1 when read.
P6DDR is initialized to H'80 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a P6DDR bit is set to 1, the corresponding pin maintains its output
state in software standby mode.
Port 6 Data Register (P6DR): P6DR is an 8-bit readable/writable register that stores data for
pins P6₂ to P6₀.
Bit
7
6
5
4
3
2
1
0
—
P6 ₆
P6 ₅
P6 ₄
P6 ₃
P6 ₂
P6 ₁
P6 ₀
Initial value
1
0
0
0
0
0
0
0
Read/Write
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reserved bits
Port 6 data 2 to 0
These bits store data
for port 6 pins
When a bit in P6DDR is set to 1, if port 6 is read the value of the corresponding P6DR bit is
returned directly. When a bit in P6DDR is cleared to 0, if port 6 is read the corresponding pin
level is read. In this case bit 7 reads 1 and bits 6 to 3 have undetermined values. Bits 7 to 3 are
reserved. Bits 6 to 3 can be written and read, but they cannot be used for port input or output.
Bit 7 cannot be modified and always reads 1.
P6DR is initialized to H'80 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
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