RGMII

Xilinx 1G_PCS_PMA Experiment

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Xilinx 1G_PCS_PMA Experiment Reference Document PG047 1G_PCS_PMA Example Project This project implements the conversion between GMII and GT interfaces, where the GMII interface connects to an external PHY chip. graph LR; gmii_txd –> |IODELAY|gmii_txd_delay; gmii_txd_delay –> |BUGIO Sampling|gmii_txd_iff; gmii_txd_iff –> |bufr Sampling|gmii_txd_reg; gmii_txd_reg –> |elastic_buffer|gmii_txd_fifo —> gt; gmii_rxd_int(gt) –>|userclk2 Sampling|rxd_obuf; rxd_obuf –>|OBUFT|gmii_rxd; Simulation Diagram: Notes: … Read more

Implementation of SGMII Gigabit Ethernet on FPGA Logic Devices

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Implementation of SGMII Gigabit Ethernet on FPGA Logic Devices

Image course, development board –> Taobao store: Wolf FPGA Consultation WeChat: MyWork666888 QQ group: 543928922 Gigabit Ethernet is a very common solution in FPGA interfaces, and various development boards provide examples in this area. However, the examples provided are mostly based on the RGMII scheme. Today, we will mainly discuss the Gigabit Ethernet solution based … Read more

Detailed Requirements for High-Speed Signal PCB Routing: eMMC/USB/MIPI/LVDS/RGMII

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Detailed Requirements for High-Speed Signal PCB Routing: eMMC/USB/MIPI/LVDS/RGMII

01 eMMC Signal Impedance and Routing It is recommended to use ground wrapping for CLK and STRB signals, with a ground via every ≤500 mil. During overall layout,eMMC should be placed as close to the SOC as possible to minimize routing length. The reference layer for all eMMC signals must be a complete ground plane … Read more

Understanding Gigabit Ethernet Bandwidth Limitations

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Understanding Gigabit Ethernet Bandwidth Limitations

Introduction With the growing demand for networking, the issue of gigabit Ethernet speed has garnered significant attention. This article analyzes the low actual speed situation, detailing reasons such as poor wiring, and provides effective methods for improving speed and stability from both hardware aspects like equal-length wiring and impedance matching, as well as software debugging … Read more