SNLU254A November   2020  – July 2022 DS160PT801

 

  1.   Abstract
  2.   Trademarks
  3. 1EVM Control and Configuration Information
    1. 1.1 Retimer Pin Controls
    2. 1.2 USB-to-SMBus Interface
    3. 1.3 PCIe PRSNT# Signal Control and Configuration
    4. 1.4 PCIe Reference Clock Control and Configuration
  4. 2EVM Power
    1. 2.1 EVM Current Sensing
  5. 3SigCon Architect GUI
    1. 3.1 Setup and Installation
    2. 3.2 Configuration Page
    3. 3.3 Low-Level Page
    4. 3.4 EEPROM Page
    5. 3.5 Control Panel
    6. 3.6 High-Level Page
    7. 3.7 Diagnostic Page
    8. 3.8 Eye Monitor Page
  6. 4PCB Material Information
    1. 4.1 DS160PT801 PCB Design
    2. 4.2 DS160PT801 PCB Stackup
    3. 4.3 DS160PT801 PCB Power Distribution
    4. 4.4 DS160PT801 Local Decoupling
  7. 5DS160PT801X16EVM Schematic
  8. 6Hardware BOM
  9. 7Revision History

1 EVM Control and Configuration Information

The DS160PT801X16 EVM uses an AT24C16 EEPROM to store retimer configuration settings. This EEPROM is pre-loaded with an EEPROM image with various settings to enable quick system bring-up for common-clock PCIe topologies.

Custom EEPROM images for compliance or separate reference independent spread (SRIS) clock topologies may be created and written to the EEPROM using the SigCon Architect software or by using the DS160PT801 I2C interface. For additional information on EEPROM programming through the I2C interface of the DS160PT801, please refer to the DS160PT801 EEPROM Programming Guide.(1)

GUID-20201025-CA0I-RWNH-KMJP-WVBQ3Q320MXQ-low.png Figure 1-1 DS160PT801X16EVM EEPROM Control and Connection

The EE-PT801 connect headers (J21 and J24) allow for quick connection or disconnection of the EEPROM serial interface. Additional test access points are provided at header J23 to allow the user to monitor EEPROM activity. The J25 header may be used to Write Protect the EEPROM and prevent any changes to the current EEPROM image. When the EEPROM is disconnected, the retimer will completely rely on the pin-strap settings for configuration, which may be modified using the shunt jumpers included with the EVM.

1. The DS160PT801 EEPROM Programming Guide is available upon request.