SNLU297 May   2021 DS320PR810

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Description
    1. 2.1  DS320PR810 5-Level I/O Control Inputs
    2. 2.2  DS320PR810 Modes of Operation
    3. 2.3  DS320PR810 SMBus or I2C Register Control Interface
    4. 2.4  DS320PR810 Equalization Control
    5. 2.5  DS320PR810 RX Detect State Machine
    6. 2.6  DS320PR810 DC Gain Control
    7. 2.7  DS320PR810 EVM Global Controls
    8. 2.8  DS320PR810EVM Downstream Devices Control
    9. 2.9  DS320PR810EVM Upstream Devices Control
    10. 2.10 Quick-Start Guide (Pin Mode)
    11. 2.11 Quick-Start Guide (SMBus Slave Mode)
  4. 3Test Setup and Results
  5. 4Schematics
  6. 5Board Layout
  7. 6Bill of Materials
  8. 7References

3 Test Setup and Results

Figure 3-1 shows a typical system setup with the DS320PR810-RSC-EVM placed between a CPU on a server motherboard and an PCIe end point (Network Interface Card or NIC). Additional Extender cards are inserted to increase the channel loss and demonstrate the ability of the redriver to extend the reach.

GUID-A1589EF7-DFC2-4CBB-B07B-550BF66CDAD9-low.gifFigure 3-1 Example Test Setup

Figure 3-2 is a typical test result achieved with a system shown in Figure 3-1. As the result indicates, the end point (Mellanox NIC) with the DS320PR810-RSC-EVM placed in the data path achieves a stable Gen5, x16 PCIe link.

GUID-09126718-5065-4E7A-A358-12A181A98256-low.pngFigure 3-2 Example Test Results