C8051T610/1/2/3/4/5/6/7
SFR Definition 16.5. IT01CF: INT0/INT1 Configuration
Bit
7
6
5
4
3
2
1
0
Name
Type
IN1PL
R/W
IN1SL[2:0]
R/W
IN0PL
R/W
IN0SL[2:0]
R/W
Reset
0
0
0
0
0
0
0
1
SFR Address = 0xE4
Bit
7
Name
IN1PL
INT1 Polarity.
0: /INT1 input is active low.
1: /INT1 input is active high.
Function
6:4
IN1SL[2:0] INT1 Port Pin Selection Bits.
These bits select which Port pin is assigned to /INT1. Note that this pin assignment is
independent of the Crossbar; /INT1 will monitor the assigned Port pin without disturb-
ing the peripheral that has been assigned the Port pin via the Crossbar. The Crossbar
will not assign the Port pin to a peripheral if it is configured to skip the selected pin.
000: Select P0.0
001: Select P0.1
010: Select P0.2
011: Select P0.3
100: Select P0.4
101: Select P0.5
110: Select P0.6
111: Select P0.7
3
IN0PL
INT0 Polarity.
0: /INT0 input is active low.
1: /INT0 input is active high.
2:0
IN0SL[2:0] INT0 Port Pin Selection Bits.
These bits select which Port pin is assigned to /INT0. Note that this pin assignment is
independent of the Crossbar; /INT0 will monitor the assigned Port pin without disturb-
ing the peripheral that has been assigned the Port pin via the Crossbar. The Crossbar
will not assign the Port pin to a peripheral if it is configured to skip the selected pin.
000: Select P0.0
001: Select P0.1
010: Select P0.2
011: Select P0.3
100: Select P0.4
101: Select P0.5
110: Select P0.6
111: Select P0.7
Rev 1.1
93
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