Visible to Intel only — GUID: sfo1410070095702
Ixiasoft
Visible to Intel only — GUID: sfo1410070095702
Ixiasoft
28.1.1. FPGA-to-HPS Bridge
Interface Name |
Description |
Associated Clock Interface |
---|---|---|
|
FPGA-to-HPS AXI slave interface |
|
The FPGA-to-HPS interface is a configurable data width AXI slave allowing FPGA masters to issue transactions to the HPS. This interface allows the FPGA fabric to access the majority of the HPS slaves. This interface also provides a coherent memory interface.
The FPGA-to-HPS interface is an AXI-3 compliant interface with the following features:
- Configurable data width: 32, 64, or 128 bits
- Accelerator Coherency Port (ACP) sideband signals
- HPS-side AXI bridge to manage clock crossing, buffering, and data width conversion
Other interface standards in the FPGA fabric, such as connecting to Avalon® Memory-Mapped (Avalon-MM) interfaces, can be supported through the use of soft logic adapters. The Platform Designer (Standard) system integration tool automatically generates adapter logic to connect AXI to Avalon-MM interfaces.
This interface has an address width of 32 bits. To access existing Avalon-MM/AXI masters, you can use the Intel® Address Span Extender.