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Renesas H8S Family Hardware Manual page 339

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(3)
Port 4 Pull-Up MOS Control Register (P4PCR)
P4PCR controls the port 4 built-in input pull-up MOSs.
Bit
Bit Name
7
P47PCR
6
P46PCR
5
P45PCR
4
P44PCR
3
P43PCR
2
P42PCR
1
P41PCR
0
P40PCR
(4)
Noise Canceler Enable Register (P4BNCE)
The individual bits of P4BNCE enable or disable the noise canceler circuits for ports 4 and B.
Bit
Bit Name
7
P47NCE
6
P46NCE
5
P45NCE
4
P44NCE
3 to 0 PB3NCE to
PB0NCE
Initial Value
R/W Description
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Initial Value
R/W Description
0
R/W
0
R/W
0
R/W
0
R/W
All 0
R/W Bits for port B setting
Normal extended mode (ADMXE = 0)
This register has no effect on operation.
Other modes
When the pins are in the input state, the
corresponding input pull-up MOS is turned on when
a P4PCR bit is set to 1.
Enables the noise canceler circuit for the corresponding
pin and the pin state is fetched into P4DR at the
sampling cycle set by NCCS.
The operation changes according to the other control
bits. See section 8.2.4(7), Pin Functions, for details.
Rev. 1.00 Mar. 12, 2008 Page 291 of 1178
Section 8 I/O Ports
REJ09B0403-0100

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R4f2472R4f2462H8s/2462H8s/2400 seriesH8s/2472