F-Tile Dynamic Reconfiguration Suite Intel® FPGA IP User Guide

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ID 711009
Date 4/11/2024
Public
Document Table of Contents
Document Table of Contents x
1. About the F-Tile Dynamic Reconfiguration Suite Intel® FPGA IP Core 2. Interface Overview 3. Parameters 4. Designing with the IP Core 5. Block Description 6. Configuration Registers 7. F-Tile Dynamic Reconfiguration Suite Intel® FPGA IP User Guide Archives 8. Document Revision History for the F-Tile Dynamic Reconfiguration Suite Intel® FPGA IP User Guide
1. About the F-Tile Dynamic Reconfiguration Suite Intel® FPGA IP Core x
1.1. Features 1.2. Design Considerations 1.3. Device Family Support 1.4. Resource Utilization 1.5. Release Information
2. Interface Overview x
2.1. Clock Signals 2.2. Reset 2.3. Avalon® Memory-Mapped Interface 2.4. Control and Status Interface
4. Designing with the IP Core x
4.1. Generating Dynamic Reconfiguration Design and Configuration Profiles 4.2. Dynamic Reconfiguration QSF Settings 4.3. Dynamic Reconfiguration Using QSF-driven Flow 4.4. Dynamic Reconfiguration Rules 4.5. Hardware States and Configuration Profiles 4.6. Nios® -Based Dynamic Reconfiguration Flow 4.7. Using the Tile Assignment Editor 4.8. Visualizing Dynamic Reconfiguration Group Placement 4.9. Assigning IP_COLOCATE Hierarchy 4.10. Example: Dynamic Reconfiguration with Multirate IP Flow 4.11. Example: Dynamic Reconfiguration Programming Sequence 4.12. Dynamic Reconfiguration Error Recovery Handling 4.13. Determining Profile Numbers 4.14. Master Clock Channel 4.15. Using the IP_RECONFIG_GROUP_PARENT QSF Assignment 4.16. Simulating the IP Core
4.6. Nios® -Based Dynamic Reconfiguration Flow x
Typical Dynamic Reconfiguration Software Flow 4.6.1. Selecting the Nios® Data Memory Size
4.7. Using the Tile Assignment Editor x
4.7.1. Creating QSF Assignments 4.7.2. Generating the IP_Colocate QSF Assignment
4.14. Master Clock Channel x
4.14.1. Selecting the Master Clock Channel
5. Block Description x
5.1. Clocks 5.2. Reset 5.3. Stack Clocking for Fracturability
6. Configuration Registers x
6.1. Dynamic Reconfiguration New Trigger 6.2. Dynamic Reconfiguration Next Profile 0 6.3. Dynamic Reconfiguration Next Profile 1 6.4. Dynamic Reconfiguration Next Profile 2 6.5. Dynamic Reconfiguration Next Profile 3 6.6. Dynamic Reconfiguration Next Profile 4 6.7. Dynamic Reconfiguration Next Profile 5 6.8. Dynamic Reconfiguration Next Profile 6 6.9. Dynamic Reconfiguration Next Profile 7 6.10. Dynamic Reconfiguration Next Profile 8 6.11. Dynamic Reconfiguration Next Profile 9 6.12. Dynamic Reconfiguration Next Profile 10 6.13. Dynamic Reconfiguration Next Profile 11 6.14. Dynamic Reconfiguration Next Profile 12 6.15. Dynamic Reconfiguration Next Profile 13 6.16. Dynamic Reconfiguration Next Profile 14 6.17. Dynamic Reconfiguration Next Profile 15 6.18. Dynamic Reconfiguration Next Profile 16 6.19. Dynamic Reconfiguration Next Profile 17 6.20. Dynamic Reconfiguration Next Profile 18 6.21. Dynamic Reconfiguration Next Profile 19 6.22. Dynamic Reconfiguration Avalon MM Timeout 6.23. Dynamic Reconfiguration TX Channel Reconfiguration 6.24. Dynamic Reconfiguration RX Channel Reconfiguration 6.25. Dynamic Reconfiguration TX Channel in Reset Acknowledgment 6.26. Dynamic Reconfiguration TX Channel out of Reset 6.27. Dynamic Reconfiguration TX Channel Reset Control Init Status 6.28. Dynamic Reconfiguration TX Channel Source Alarm 6.29. Dynamic Reconfiguration RX Channel in Reset Acknowledgment 6.30. Dynamic Reconfiguration RX Channel out of Reset 6.31. Dynamic Reconfiguration RX Channel Reset Control Init Status 6.32. Dynamic Reconfiguration RX Channel Source Alarm 6.33. Dynamic Reconfiguration Local Error Status
1. About the F-Tile Dynamic Reconfiguration Suite Intel® FPGA IP Core
2. Interface Overview
3. Parameters
4. Designing with the IP Core
5. Block Description
6. Configuration Registers
7. F-Tile Dynamic Reconfiguration Suite Intel® FPGA IP User Guide Archives
8. Document Revision History for the F-Tile Dynamic Reconfiguration Suite Intel® FPGA IP User Guide

4.6. Nios® -Based Dynamic Reconfiguration Flow

The following figure illustrates the dynamic reconfiguration flow facilitated by Nios® . The left side of the flow chart shows the Host Software flow which triggers dynamic reconfiguration.
Figure 4. Dynamic Reconfiguration Flow Facilitated by Nios®

The host software puts the “DR-out” IP into quiescent state by asserting datapath reset to the IP. Then the host software polls the DR CSR Ready for New Trigger until it is set.

Then, the host software programs the profile information to the DR CSR registers and sets the Trigger Reconfig bit. Once Nios® samples the Trigger Reconfig bit set, it shall execute internal Tile specific programming to perform the DR switching, abstracting all the tile-specific architecture from host software. Host software polls specific DR CSR Ready for New Trigger bit to know when the Nios® is done with the switching flow, before host software can initiate another DR on the same channel. Once the Nios® is done with the switching flow, host software can release the “DR-in” IP from reset.

The right flow-chart shows the action taken by the NIOS core (either directly, or indirectly via other controllers) upon receiving the request to perform DR switching. The Trigger Reconfig bit, when set, is sampled by the Nios® core to invoke the internal DR switching flow. Nios® reads the new configuration settings and proceed to start the DR.

The next step is to write new configurations to the respective Tile IP blocks (MAC, PCS, FEC, PMA) registers. The tile registers to be programmed are derived based on the DR CSR registers values configured by host software.

Once the new tile configuration has been done, the Nios® core sets the DR CSR Ready for New Trigger bit so that host software knows the current DR switching is completed.

Typical Dynamic Reconfiguration Software Flow

Use the following step sequence when dynamically reconfiguring your design:
  • Continuously poll Dynamic Reconfiguration New Trigger (0x00[1]) register until asserted. When asserted, the Nios® is ready.
  • Reset the current protocol IP. For example, set i_p0_rst_n, i_p0_tx_rst_n, and i_p0_rx_rst_n bits to 1'b0.
  • Wait for the current protocol IP reset acknowledgment. For example, clear o_p0_rst_ack_n, o_p0_tx_rst_ack_n, and o_p0_rx_rst_ack_n bits to 1'b0.
  • Configure the next profile by programming Dynamic Reconfiguration Next Profile <N> (0x04 - 0x50) registers.
  • Trigger dynamic reconfiguration by writing Dynamic Reconfiguration New Trigger (0x00[0]) register.
  • Continuously poll Dynamic Reconfiguration New Trigger (0x00[1]) register until asserted.
  • Configure the new protocol IP with a new configuration. For example, use 0x200 - 0x0208 offset for Ethernet Multirate IP registers.
  • Take the new protocol IP out of reset. For example, set i_p0_rst_n, i_p0_tx_rst_n, and i_p0_rx_rst_n bits to 1'b1.
  • Wait for new protocol IP reset acknowledgment. For example, o_p0_rst_ack_n, o_p0_tx_rst_ack_n, and o_p0_rx_rst_ack_n bits to 1'b1.
  • Dynamic reconfiguration is complete.

Section Content
Selecting the Nios Data Memory Size

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