C8051F50x-F51x
SFR Definition 14.7. IT01CF: INT0/INT1 Configuration
Bit
7
6
5
4
3
2
1
0
IN1PL
IN1SL[2:0]
IN0PL
IN0SL[2:0]
Name
Type
Reset
R/W
0
R/W
0
R/W
0
R/W
0
0
0
0
0
SFR Address = 0xE4; SFR Page = 0x0F
Bit
Name
Function
7
IN1PL
INT1 Polarity.
0: INT1 input is active low.
1: INT1 input is active high.
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 P1.0
001: Select P1.1
010: Select P1.2
011: Select P1.3
100: Select P1.4
101: Select P1.5
110: Select P1.6
111: Select P1.7
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 P1.0
001: Select P1.1
010: Select P1.2
011: Select P1.3
100: Select P1.4
101: Select P1.5
110: Select P1.6
111: Select P1.7
128
Rev. 1.1
SILICON [ SILICON ]
