Ethernet Subsystem Intel® FPGA IP User Guide: Early Access Customer Release

ID 773413
Date 4/14/2023

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4.1.8. get_csr for E-Tile (0x6)

get_csr SAL command is an indirect CSR access to read from the Ethernet Subsystem Registers. The CSR address is written to HSSI Control/Address Register and then a write to the HSSI Command/Status Register is required to trigger the read operation. The CSR read data will be available in HSSI Read Data Register.

Refer to set_csr for E-Tile (0x5) example above to determine the Address[25:2] field in the HSSI Control/Address CSR for get_csr command.