Freescale Semiconductor /MKL02Z4 /PORTA /PCR24

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Interpret as PCR24

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (0)PE 0 (0)PFE 0 (0)DSE 0 (000)MUX0 (0000)IRQC0 (0)ISF

IRQC=0000, MUX=000, DSE=0, ISF=0, PE=0, PFE=0

Description

Pin Control Register n

Fields

PE

Pull Enable

0 (0): Internal pullup or pulldown resistor is not enabled on the corresponding pin.

1 (1): Internal pullup or pulldown resistor is enabled on the corresponding pin, if the pin is configured as a digital input.

PFE

Passive Filter Enable

0 (0): Passive input filter is disabled on the corresponding pin.

1 (1): Passive input filter is enabled on the corresponding pin, if the pin is configured as a digital input. Refer to the device data sheet for filter characteristics.

DSE

Drive Strength Enable

0 (0): Low drive strength is configured on the corresponding pin, if pin is configured as a digital output.

1 (1): High drive strength is configured on the corresponding pin, if pin is configured as a digital output.

MUX

Pin Mux Control

0 (000): Pin disabled (analog).

1 (001): Alternative 1 (GPIO).

2 (010): Alternative 2 (chip-specific).

3 (011): Alternative 3 (chip-specific).

4 (100): Alternative 4 (chip-specific).

5 (101): Alternative 5 (chip-specific).

6 (110): Alternative 6 (chip-specific).

7 (111): Alternative 7 (chip-specific).

IRQC

Interrupt Configuration

0 (0000): Interrupt request disabled.

8 (1000): Interrupt when logic zero.

9 (1001): Interrupt on rising edge.

10 (1010): Interrupt on falling edge.

11 (1011): Interrupt on either edge.

12 (1100): Interrupt when logic one.

ISF

Interrupt Status Flag

0 (0): Configured interrupt is not detected.

1 (1): Configured interrupt is detected. The flag remains set until a logic one is written to the flag. If the pin is configured for a level sensitive interrupt and the pin remains asserted, then the flag is set again immediately after it is cleared.

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