Visible to Intel only — GUID: mwh1409959320932
Ixiasoft
Visible to Intel only — GUID: mwh1409959320932
Ixiasoft
4.1.8. Address Span Extender
The address span extender does not limit master and slave widths to a 32-bit and 64-bit configuration. You can use the address span extender with 1-64 bit address windows.
If a processor can address only 2 GB of an address span, and your system contains 4 GB of memory, the address span extender can provide two, 2 GB windows in the 4 GB memory address space. This issue sometimes occurs with Intel SoC devices.
For example, an HPS subsystem in an SoC device can address only 1 GB of an address span within the FPGA, using the HPS-to-FPGA bridge. The address span extender enables the SoC device to address all the address space in the FPGA using multiple 1 GB windows.