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##

# 2.81.6 PIO_PortClear Function

## C

    void PIO_PortClear(PIO_PORT port, uint32_t mask)

## Summary

Clear the selected IO pins of a port.

## Description

This function clears (to '0') the selected IO pins of a port.

## Precondition

None.

## Parameters

Param | Description
--- | ---
port | One of the IO ports from the enum PIO_PORT
mask | A 32 bit value in which positions of 0s and 1s decide which IO pins of the selected port will be cleared.

- 1's Will clear corresponding IO pins to low (to 0).

- 0's Will remain unchanged.

## Returns

None.

## Example

    // Clear PC5 and PC7 pins to 0
    PIO_PortClear(PIO_PORT_C, 0x00A0);

## Remarks

If the port has less than 32-bits, unimplemented pins will be ignored. Implemented pins are Right aligned in the 32-bit value.