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AT80C51RB2-3CSIM bảng dữ liệu(PDF) 56 Page - ATMEL Corporation

tên linh kiện AT80C51RB2-3CSIM
Giải thích chi tiết về linh kiện  80C51 High Performance ROM 8-bit Microcontroller
PDF  83 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
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AT80C51RB2-3CSIM bảng dữ liệu(HTML) 56 Page - ATMEL Corporation

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AT80C51RD2/AT83C51Rx2
4113B–8051–03/05
Table 41. KBE Register
KBE - Keyboard Input Enable Register (9Dh)
Reset Value = 0000 0000b
7654
3210
KBE7
KBE6
KBE5
KBE4
KBE3
KBE2
KBE1
KBE0
Bit
Number
Bit
Mnemonic
Description
7KBE7
Keyboard line 7 enable bit
Cleared to enable standard I/O pin.
Set to enable KBF.7 bit in KBF register to generate an interrupt request.
6KBE6
Keyboard line 6 enable bit
Cleared to enable standard I/O pin.
Set to enable KBF.6 bit in KBF register to generate an interrupt request.
5KBE5
Keyboard line 5 enable bit
Cleared to enable standard I/O pin.
Set to enable KBF.5 bit in KBF register to generate an interrupt request.
4KBE4
Keyboard line 4 enable bit
Cleared to enable standard I/O pin.
Set to enable KBF.4 bit in KBF register to generate an interrupt request.
3KBE3
Keyboard line 3 enable bit
Cleared to enable standard I/O pin.
Set to enable KBF.3 bit in KBF register to generate an interrupt request.
2KBE2
Keyboard line 2 enable bit
Cleared to enable standard I/O pin.
Set to enable KBF.2 bit in KBF register to generate an interrupt request.
1KBE1
Keyboard line 1 enable bit
Cleared to enable standard I/O pin.
Set to enable KBF.1 bit in KBF register to generate an interrupt request.
0KBE0
Keyboard line 0 enable bit
Cleared to enable standard I/O pin.
Set to enable KBF.0 bit in KBF register to generate an interrupt request.



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