Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs
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Ixiasoft
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Ixiasoft
11.2.3. Lightweight HPS-to-FPGA
LWH2F bridge extends the HPS peripherals to the FPGA similar to H2F. However, the LWH2F is meant for a narrower use case involving simple peripherals on the FPGA, where latency is prioritized over bandwidth. The LWH2F bridge is meant for strongly-ordered single transactions.
This allows use of the LWH2F as the configuration bus for FPGA IPs. The FPGA IP can then make use of H2F or F2H/F2SDRAM as the main data mover bus.