Visible to Intel only — GUID: nvj1711976340776
Ixiasoft
Visible to Intel only — GUID: nvj1711976340776
Ixiasoft
50.5.1.1. Data Path
Transmit and Receive Data Path
For transmit path, the GMII data goes through the transmit pipeline register stage before going into the RGMII Output Standard Function (RGMII_O SF) Converter Block. The pipeline logic is optional and you can enabled or disabled during IP generation time.
For receive path, the GMII data right after the RGMII Input Standard Function (RGMII_I SF) Converter Block goes through the receive pipeline register stage then directly to the HPS EMAC GMII interface. Similarly, you can enable or disable this pipeline logic during IP generation time.
The RGMII_I/O SF converter block manages single data rate to double data rate conversion and vice-versa. The Intel Agilex 5 FPGA HVIO component is used to perform this task. This block also decodes collision and carrier sense condition through In-Band status detection.