27.1 Introduction
SP7021 can connect to external FPGA thru many different ways, like thru I2C, GPIO or SDIO. For higher bandwidth application, SP7021 supports high performance interface to connect to external FPGA. The FPGA interface implements by FBIO module which provides a special interface for SP7021 and FPGA. This document provides a guide for customer to connect FPGA with the SP7021 peripheral pins and also describes how to access FPGA module through this interface. It provides a convenience method to communicate with FPGA and more efficiency method to verify the FPGA function. Compare to marketing FPGA verification tools, It also save much cost.
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