AT83C51RB2-3CSCM View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT83C51RB2-3CSCM Datasheet PDF : 83 Pages
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AT80C51RD2/AT83C51Rx2
Table 41. KBE Register
KBE - Keyboard Input Enable Register (9Dh)
7
6
5
4
3
KBE7
KBE6
KBE5
KBE4
KBE3
2
KBE2
1
KBE1
0
KBE0
Bit
Number
7
6
5
4
3
2
1
0
Bit
Mnemonic Description
KBE7
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.
KBE6
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.
KBE5
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.
KBE4
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.
KBE3
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.
KBE2
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.
KBE1
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.
KBE0
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.
Reset Value = 0000 0000b
57
4113B–8051–03/05
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