HD6473032F Datasheet, PDF (151/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

Bits P5₇ to P5₄ are reserved. They can be written and read, but they cannot be used for port input or
output.
P5DR is initialized to H'F0 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Port 5 Input Pull-Up Control Register (P5PCR): P5PCR is an 8-bit readable/writable register
that controls the MOS input pull-up transistors in port 5.
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
—
—
—
— P5₃PCR P5₂PCR P5₁PCR P5₀PCR
1
1
1
1
0
0
0
0
—
—
—
—
R/W
R/W
R/W
R/W
Reserved bits
Port 5 input pull-up control 3 to 0
These bits control input pull-up
transistors built into port 5
When a P5DDR bit is cleared to 0 (selecting generic input), if the corresponding bit from P5₃PCR
to P5₀PCR is set to 1, the input pull-up transistor is turned on.
P5PCR is initialized to H'F0 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
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