Intel® Stratix® 10 Configuration via Protocol (CvP) Implementation User Guide

ID 683704
Date 7/01/2021

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents
Give Feedback

1.3. CvP Modes

The CvP configuration scheme supports the following modes:

  • CvP Initialization mode
  • CvP Update mode

CvP Initialization Mode

This mode configures the CvP PCIe* core using the peripheral image of the FPGA through the on-board configuration device. Subsequently, configures the core fabric and all GPIOs through PCIe* link.

Benefits of using CvP Initialization mode include:

  • Satisfying the PCIe* wake-up time requirement
  • Saving cost by storing the core image in the host memory

CvP Update Mode

In the CvP update mode, you reconfigure the entire device except the CvP PCIe* core after the device enters the user mode through full chip configuration or CvP initialization. The subsequent core image updates use the PCIe* link (the periphery must not change during CvP update).

The CvP update mode uses the same process as root partition reuse in block-based design, which allows you to reuse the device periphery.

Choose this mode if you want to update the core image for any of the following reasons:

  • To change core algorithms logic blocks
  • To perform standard updates as part of a release process
  • To customize core processing for different components that are part of a complex system
Note: The CvP update mode is available after the FPGA enters user mode. In user mode, the PCIe* link is available for normal PCIe* applications as well as to perform an FPGA core image update.
Table 1.  CvP Support for Intel® Stratix® 10 Device Family
Supported Tile PCIe* Version Supported CvP Modes
H- and L-tile Gen 1 / Gen 2 / Gen 3 CvP Initialization, CvP Update
Gen 1 / Gen 2 / Gen 3 / Gen 4
Note: You can only select Gen 3 and above in the PCIe* Hard IP, but the host can down-train the link to Gen 1 and Gen 2 if necessary.
Note: P-tile Gen 3x8 and Gen 4x8 cannot support CvP.