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##

# 2.108.9 SEFCx_RegionUnlock Function

## C

    void SEFCx_RegionUnlock(uint32_t address); // x - Instance of the SEFC peripheral

## Summary

Unlocks a Flash region.

## Description

This function is used to Unlock a certain region of on-chip flash. It takes in address as a parameter and unlocks the region associated with it.

## Precondition

Validate if SEFCx controller is ready to accept new request by calling SEFCx_IsBusy()

## Parameters

Param | Description
--- | ---
address | Address of the page to be unlocked

## Returns

None.

## Example

    SEFC0_RegionUnlock(0x00500000);

    while(SEFC0_IsBusy());