AN 802: Intel® Stratix® 10 SoC Device Design Guidelines

ID 683117
Date 12/14/2020
Public

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3.4. Timing Closure for FPGA Accelerators

The HPS bridge and FPGA-to-SDRAM ports exposed to the FPGA are synchronous; and clock crossing is performed within the interface itself. As a result, you must only ensure that both the FPGA-facing logic and your user design close timing in Timing Analyzer. Interrupts are considered asynchronous by the HPS, and as a result the HPS logic resynchronizes them to the internal HPS clock domain so there is no need to close timing for them.