14.3.2.5 Enable Write-Synchronization

Setting the Enable bit in a module's Control register (CTRL.ENABLE) will also trigger write-synchronization and set SYNCBUSY.ENABLE. CTRL.ENABLE will read its new value immediately after being written. SYNCBUSY.ENABLE will be cleared by hardware when the operation is complete. The Synchronisation Ready interrupt (if available) cannot be used for Enable write-synchronization.