The UARTE peripheral shares registers and other resources with peripherals that have the same ID as UARTE. Before UARTE can be configured and used, all peripherals that have the same ID as UARTE must be disabled.
Disabling a peripheral with the same ID as UARTE will not reset any shared UARTE registers. Configure all UARTE registers to ensure they operate correctly.
See the Instantiation table in Instantiation for details on peripherals and their IDs.