AMBIX0 bus Managers and priority handling

nRF54L15 | nRF54L10 | nRF54L05 Datasheet

The main interconnect (AMBIX0) has a bus matrix that handles bus arbitration.

AMBIX0 uses a round-robin bus Manager arbitration algorithm.

Some peripherals cannot pause incoming data. As a low priority bus Manager, data loss is possible for these peripherals when bus contention occurs. To avoid bus contention when using multiple bus Managers, follow these guidelines:
  • Avoid situations where more than one bus Manager is accessing the same RAM Subordinate.
  • If more than one bus Manager is accessing the same Subordinate, make sure that the bus bandwidth is not exhausted.