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H8S/2225 数据表(PDF) 396 Page - Renesas Technology Corp

部件名 H8S/2225
功能描述  16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series
PDF  1071 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8S/2225 数据表(HTML) 396 Page - Renesas Technology Corp

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Section 10 I/O Ports
Rev. 5.00 Aug 08, 2006 page 310 of 982
REJ09B0054-0500
10.1.2
Port 1 Data Register (P1DR)
P1DR stores output data for port 1 pins.
Bit
Bit Name
Initial Value
R/W
Description
7
P17DR
0
R/W
6
P16DR
0
R/W
5
P15DR
0
R/W
4
P14DR
0
R/W
3
P13DR
0
R/W
2
P12DR
0
R/W
1
P11DR
0
R/W
0
P10DR
0
R/W
Output data for a pin is stored when the pin is
specified as a general purpose I/O port.
10.1.3
Port 1 Register (PORT1)
PORT1 shows the pin states. This register cannot be modified.
Bit
Bit Name
Initial Value
R/W
Description
7P17
—*
R
6P16
—*
R
5P15
—*
R
4P14
—*
R
3P13
—*
R
2P12
—*
R
1P11
—*
R
0P10
—*
R
If a port 1 read is performed while P1DDR bits are
set to 1, the P1DR values are read. If a port 1 read
is performed while P1DDR bits are cleared to 0,
the pin states are read.
Note:
* Determined by the states of pins P17 to P10.



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