Peripheral access error reporting

nRF5340 Product Specification

Peripherals send error reports once access violation is detected.

The following actions will happen if the logic controlled by the SPU detects an access violation on one of the peripherals:

  • The faulty transfer will be blocked.
  • In case of a read transfer, the bus will be driven to zero.
  • If supported by the master, feedback is sent to the master through specific bus error signals. If the master is a processor supporting Arm TrustZone for Cortex-M, a SecureFault exception will be generated for security related errors.
  • The PERIPHACCERR event will be triggered.