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HT85F2270 bảng dữ liệu(PDF) 122 Page - Holtek Semiconductor Inc

tên linh kiện HT85F2270
Giải thích chi tiết về linh kiện  Standard 8051 8-Bit Flash MCU
PDF  226 Pages
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nhà sản xuất  HOLTEK [Holtek Semiconductor Inc]
Trang chủ  http://www.holtek.com
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HT85F2270 bảng dữ liệu(HTML) 122 Page - Holtek Semiconductor Inc

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Rev. 1.00
1�� of ��6
�a� 1�� �01�
Standard 8051 8-Bit Flash MCU
HT85F2260/HT85F2270/HT85F2280
Port 2 Mode Control
P2M0 Register
SFR Address: AEh
Bit
7
6
5
4
3
2
1
0
Name
P��0.7
P��0.6
P��0.�
P��0.4
P��0.�
P��0.�
P��0.1
P��0.0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
P2M1 Register
SFR Address: AFh
Bit
7
6
5
4
3
2
1
0
Name
P��1.7
P��1.6
P��1.�
P��1.4
P��1.�
P��1.�
P��1.1
P��1.0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Port 3 Mode Control
P3M0 Register
SFR Address: B6h
Bit
7
6
5
4
3
2
1
0
Name
P��0.7
P��0.6
P��0.�
P��0.4
P��0.�
P��0.�
P��0.1
P��0.0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
P3M1 Register
SFR Address: B7h
Bit
7
6
5
4
3
2
1
0
Name
P��1.7
P��1.6
P��1.�
P��1.4
P��1.�
P��1.�
P��1.1
P��1.0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
These registers operate as pairs, for example P0M0 and P0M1, to select the operating mode for
each I/O pin. The following table shows how the PnM0 and PnM1 bits are used to select the I/O
operating mode.
PnM0.m
PnM1.m
Configuration of Port n.m
0
0
Quasi-bidirectional
0
1
Push-Pull Output
1
0
Input-Onl� – High Impedance Input
1
1
Open-Drain Output
Legend: n=0~� which selects Port 0 to Port �
m=0~7 which selects the port pin



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