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##

# 2.73.15 NVMCTRL_SecureRegionUnlock Function

## C

    void NVMCTRL_SecureRegionUnlock (NVMCTRL_SECURE_MEMORY_REGION region)

## Summary

Unlocks a NVMCTRL secure region.

## Description

This function unlocks a secure region that was locked using the NVMCTRL_SecureRegionLock() function. Unlocking a secure region unlocks all pages in the secure region and makes these pages accessible to write and erase operations.

## Precondition

None.

## Parameters

Param | Description
--- | ---
region | Secure region to be unlocked.

## Returns

None.

## Example

    // Unlock the secure application region
    NVMCTRL_SecureRegionUnlock(NVMCTRL_SECURE_MEMORY_REGION_APPLICATION);

## Remarks

This NVMCTRL_SecureRegionUnlock() function is only available in trustZone supported devices.