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ST10F280 Datasheet(PDF) 111 Page - STMicroelectronics

Part # ST10F280
Description  16-bit MCU with MAC unit, 512 Kbyte Flash memory and 18 Kbyte RAM
PDF  239 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST10F280 Datasheet(HTML) 111 Page - STMicroelectronics

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ST10F280
Parallel ports
Doc ID 8673 Rev. 3
111/239
12.5
Port 3
If this 15-bit port is used for general purpose I/O, the direction of each line can be configured
by the corresponding direction register DP3. Most port lines can be switched into push/pull
or open drain mode by the open drain control register ODP3 (pins P3.15, P3.14 and P3.12
do not support open drain mode).
Due to pin limitations register bit P3.14 is not connected to an output pin.
P3
Address:
0xFFC4h / E2h SFR
Reset:
0x0000h
Type:
R/W
DP3
Address:
0xFFC6h / E3h SFR
Reset:
0x0000h
Type:
R/W
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
P3.15
-
P3.13
P3.12
P3.11
P3.10
P3.9
P3.8
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.1
P3.0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
P3.y Port data register P3 bit y
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DP3.y Port direction register DP3 bit y
DP3.y = 0: Port line P3.y is an input (high-impedance)
DP3.y = 1: Port line P3.y is an output



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