14.10 Linked IDAU Regions
Many peripherals implement several memory spaces (often command and data) mapped at different locations in the global memory map. These correspond to different IDAU regions that cannot be merged. Only one IDAU region is configurable, and others use a linked IDAU region type that instructs the user that the region state is driven by another IDAU region. This is identified in the RSTATUSC register. The secure state (secure or non-secure) is also readable from the RSTATUSB register.