C8051F360 datasheet(116/288 Pages) SILABS

116 / 288 page

C8051F360/1/2/3/4/5/6/7/8/9

116

Rev. 1.0

SFR Definition 10.7. IT01CF: INT0/INT1 Configuration

Bit 7:

IN1PL: /INT1 Polarity

0: /INT1 input is active low.

1: /INT1 input is active high.

Bits 6–4: IN1SL2-0: /INT1 Port Pin Selection Bits

These bits select which Port pin is assigned to /INT1. Note that this pin assignment is inde-

pendent of the Crossbar; /INT1 will monitor the assigned Port pin without disturbing 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 (accomplished by

setting to ‘1’ the corresponding bit in register P0SKIP).

Bit 3:

IN0PL: /INT0 Polarity

0: /INT0 interrupt is active low.

1: /INT0 interrupt is active high.

Bits 2–0: INT0SL2-0: /INT0 Port Pin Selection Bits

These bits select which Port pin is assigned to /INT0. Note that this pin assignment is inde-

pendent of the Crossbar. /INT0 will monitor the assigned Port pin without disturbing 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 (accomplished by

setting to ‘1’ the corresponding bit in register P0SKIP).

SFR Page:

SFR Address:

all pages

0xE4

R/W

Reset Value

IN1PL

IN1SL2

IN1SL1

IN1SL0

IN0PL

IN0SL2

IN0SL1

IN0SL0

00000001

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

Note: Refer to SFR Definition 21.1. “TCON: Timer Control” on page 252 for INT0/1 edge- or level-sensitive interrupt selection.

IN1SL2-0

/INT1 Port Pin

000

P0.0

001

P0.1

010

P0.2

011

P0.3

100

P0.4

101

P0.5

110

P0.6

111

P0.7

IN0SL2-0

/INT0 Port Pin

000

P0.0

001

P0.1

010

P0.2

011

P0.3

100

P0.4

101

P0.5

110

P0.6

111

P0.7

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