Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 4/01/2024
Public

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A.2.6.1.1.1. Data Target Remapping Example

To remap the data target to access other 1 MB regions of the Flash device, enable address remapping in the enable Arm® AMBA advanced high speed bus (AHB) address remapping field (enahbremap) of the cfg register. All incoming data target accesses remap to the offset specified in the remap address register (remapaddr).

The 20 LSBs of incoming addresses are used for accessing the 1 MB region and the higher bits are ignored.

The following figure shows the data target remapping example.

Figure 328. Data Target Remapping Example
Note: The QSPI controller does not issue any error status for accesses that lie outside the connected Flash memory space.