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H8SX/1663 Datenblatt(PDF) 492 Page - Renesas Technology Corp

Teilenummer H8SX/1663
Bauteilbeschribung  Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series
PDF  1158 Pages
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Hersteller  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8SX/1663 Datenblatt(HTML) 492 Page - Renesas Technology Corp

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Section 9 I/O Ports
Rev.1.00 Jun. 07, 2006 Page 440 of 1102
REJ09B0294-0100
9.1.5
Pull-Up MOS Control Register (PnPCR) (n = D to F, H, and I)
PCR is an 8-bit readable/writable register that controls on/off of the port input pull-up MOS.
If a bit in PCR is set to 1 while the pin is in input state, the input pull-up MOS corresponding to
the bit in PCR is turned on. Table 9.4 shows the input pull-up MOS status.
The initial value of PCR is H'00.
Bit
Bit Name
Initial Value
R/W
7
Pn7PCR
0
R/W
6
Pn6PCR
0
R/W
5
Pn5PCR
0
R/W
4
Pn4PCR
0
R/W
3
Pn3PCR
0
R/W
2
Pn2PCR
0
R/W
1
Pn1PCR
0
R/W
0
Pn0PCR
0
R/W
Table 9.4
Input Pull-Up MOS State
Port
Pin State
Reset
Hardware
Standby Mode
Software
Standby Mode
Other
Operation
Port D
Address output
OFF
Port output
OFF
Port input
OFF
ON/OFF
Port E
Address output
OFF
Port output
OFF
Port input
OFF
ON/OFF
Port F
Address output
OFF
Port output
OFF
Port input
OFF
ON/OFF
Port H
Data input/output
OFF
Port output
OFF
Port input
OFF
ON/OFF
Port I
Data input/output
OFF
Port output
OFF
Port input
OFF
ON/OFF
[Legend]
OFF:
The input pull-up MOS is always off.
ON/OFF:
If PCR is set to 1, the input pull-up MOS is on; if PCR is cleared to 0, the input pull-up
MOS is off.



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