RapidIO Intel FPGA IP User Guide

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ID 683884
Date 9/15/2021
Public
Document Table of Contents
Document Table of Contents x
Product Discontinuance Notification 1. About the RapidIO Intel FPGA IP Core 2. Getting Started 3. Parameter Settings 4. Functional Description 5. Signals 6. Software Interface 7. Testbench 8. Platform Designer (Standard) Design Example 9. RapidIO Intel FPGA IP User Guide Archives 10. Document Revision History for the RapidIO Intel® FPGA IP User Guide A. Initialization Sequence B. Porting a RapidIO Design from the Previous Version of Software
1. About the RapidIO Intel FPGA IP Core x
1.1. Features 1.2. Device Family Support 1.3. IP Core Verification 1.4. Performance and Resource Utilization 1.5. Device Speed Grades 1.6. Release Information
1.1. Features x
1.1.1. Supported Transactions
1.3. IP Core Verification x
1.3.1. Simulation Testing 1.3.2. Hardware Testing 1.3.3. Interoperability Testing
2. Getting Started x
2.1. Installing and Licensing Intel® FPGA IP Cores 2.2. Generating IP Cores 2.3. IP Core Generation Output ( Intel® Quartus® Prime Standard Edition) 2.4. RapidIO IP Core Testbench Files 2.5. Simulating IP Cores 2.6. Integrating Your IP Core in Your Design 2.7. Specifying Timing Constraints 2.8. Compiling the Full Design and Programming the FPGA 2.9. Instantiating Multiple RapidIO IP Cores
2.1. Installing and Licensing Intel® FPGA IP Cores x
2.1.1. Intel® FPGA IP Evaluation Mode
2.2. Generating IP Cores x
2.2.1. IP Core Generation Output ( Intel® Quartus® Prime Pro Edition)
2.5. Simulating IP Cores x
2.5.1. Simulating the Testbench with the ModelSim Simulator 2.5.2. Simulating the Testbench with the VCS Simulator 2.5.3. Simulating the Testbench with the Xcelium Simulator
2.6. Integrating Your IP Core in Your Design x
2.6.1. Calibration Clock 2.6.2. Dynamic Transceiver Reconfiguration Controller 2.6.3. Transceiver Settings 2.6.4. Adding Transceiver Analog Settings for Arria II GX, Arria II GZ, and Stratix IV GX Variations 2.6.5. External Transceiver PLL 2.6.6. Transceiver PHY Reset Controller for Intel® Arria® 10 and Intel® Cyclone® 10 GX Variations
2.9. Instantiating Multiple RapidIO IP Cores x
2.9.1. Clock and Signal Requirements for Arria® V, Cyclone® V, and Stratix® V Variations 2.9.2. Clock and Signal Requirements for Arria II GX, Arria II GZ, Cyclone IV GX, and Stratix IV GX Variations 2.9.3. Correcting the Synopsys Design Constraints File to Distinguish RapidIO IP Core Instances 2.9.4. Sourcing Multiple Tcl Scripts for Variations other than Intel® Arria® 10 and Intel® Cyclone® 10 GX
3. Parameter Settings x
3.1. Physical Layer Settings 3.2. Transport and Maintenance Settings 3.3. I/O and Doorbell Settings 3.4. Capability Registers Settings
3.1. Physical Layer Settings x
3.1.1. Device Options 3.1.2. Data Settings 3.1.3. Receive Priority Retry Thresholds 3.1.4. Transceiver Settings
3.2. Transport and Maintenance Settings x
3.2.1. Transport Layer 3.2.2. Input/Output Maintenance Logical Layer Module 3.2.3. Port Write
3.3. I/O and Doorbell Settings x
3.3.1. I/O Logical Layer Interfaces 3.3.2. I/O Slave Address Width 3.3.3. I/O Read and Write Order Preservation 3.3.4. Avalon® -MM Master 3.3.5. Avalon® -MM Slave 3.3.6. Doorbell Slave
3.4. Capability Registers Settings x
3.4.1. Device Registers 3.4.2. Assembly Registers 3.4.3. Processing Element Features 3.4.4. Switch Support 3.4.5. Data Messages
4. Functional Description x
4.1. Interfaces 4.2. Clocking and Reset Structure 4.3. Physical Layer 4.4. Transport Layer 4.5. Logical Layer Modules 4.6. Error Detection and Management
4.1. Interfaces x
4.1.1. RapidIO Interface 4.1.2. Avalon® Memory Mapped ( Avalon® -MM) Master and Slave Interfaces 4.1.3. Avalon® Streaming ( Avalon® -ST) Interface
4.1.2. Avalon® Memory Mapped ( Avalon® -MM) Master and Slave Interfaces x
4.1.2.1. Avalon® -MM Interface Widths in the RapidIO IP Core 4.1.2.2. Avalon® -MM Interface Byte Ordering
4.2. Clocking and Reset Structure x
4.2.1. RapidIO IP Core Clocking 4.2.2. Reset for RapidIO IP Cores
4.2.1. RapidIO IP Core Clocking x
4.2.1.1. Avalon® System Clock 4.2.1.2. Reference Clock 4.2.1.3. Other Input Clocks 4.2.1.4. Clock Domains 4.2.1.5. Baud Rates and Clock Frequencies
4.2.2. Reset for RapidIO IP Cores x
4.2.2.1. General RapidIO Reset Signal Requirements 4.2.2.2. Reset Controller 4.2.2.3. Reset Requirements for Arria® V, Cyclone® V, and Stratix® V Variations 4.2.2.4. Reset Requirements for Intel® Arria® 10 and Intel® Cyclone® 10 GX Variations 4.2.2.5. RapidIO IP Core Reset Behavior
4.3. Physical Layer x
4.3.1. Features 4.3.2. Physical Layer Architecture 4.3.3. Low-level Interface Receiver 4.3.4. Low-Level Interface Transmitter 4.3.5. Protocol and Flow Control Engine 4.3.6. Physical Layer Receive Buffer 4.3.7. Physical Layer Transmit Buffer
4.3.3. Low-level Interface Receiver x
4.3.3.1. Receiver Transceiver 4.3.3.2. CRC Checking and Removal
4.3.4. Low-Level Interface Transmitter x
4.3.4.1. Transmitter Transceiver
4.3.6. Physical Layer Receive Buffer x
4.3.6.1. Error Conditions that Flush the Receive Buffer 4.3.6.2. Error Conditions Flagged for the Transport Layer 4.3.6.3. Receive Priority Threshold Values
4.3.7. Physical Layer Transmit Buffer x
4.3.7.1. Transmit and Retransmit Queues 4.3.7.2. Error Conditions that Flush the Transmit Buffer 4.3.7.3. Forced Compensation Sequence Insertion
4.4. Transport Layer x
4.4.1. Receiver 4.4.2. Transaction ID Ranges 4.4.3. Transmitter
4.5. Logical Layer Modules x
4.5.1. Concentrator Register Module 4.5.2. Maintenance Module 4.5.3. Input/Output Logical Layer Modules 4.5.4. Doorbell Module 4.5.5. Avalon® -ST Pass-Through Interface
4.5.2. Maintenance Module x
4.5.2.1. Maintenance Register 4.5.2.2. Maintenance Slave Processor 4.5.2.3. Maintenance Master Processor 4.5.2.4. Port-Write Processor 4.5.2.5. Maintenance Module Error Handling
4.5.2.4. Port-Write Processor x
4.5.2.4.1. Port-Write Transmission 4.5.2.4.2. Port-Write Reception
4.5.3. Input/Output Logical Layer Modules x
4.5.3.1. Input/Output Avalon® -MM Master Module 4.5.3.2. Input/Output Avalon® -MM Master Module Timing Diagrams 4.5.3.3. Input/Output Avalon® -MM Slave Module 4.5.3.4. Avalon® -MM Burstcount and Byteenable Encoding in RapidIO Packets 4.5.3.5. Input/Output Avalon® -MM Slave Module Timing Diagrams
4.5.3.1. Input/Output Avalon® -MM Master Module x
4.5.3.1.1. Input/Output Avalon® -MM Master Address Mapping Windows
4.5.3.3. Input/Output Avalon® -MM Slave Module x
4.5.3.3.1. Keeping Track of I/O Write Transactions 4.5.3.3.2. Input/Output Avalon® -MM Slave Address Mapping Windows 4.5.3.3.3. Input/Output Slave Translation Window Example 4.5.3.3.4. Translation Window 0 4.5.3.3.5. Translation Window 1 4.5.3.3.6. Translation Window 2
4.5.4. Doorbell Module x
4.5.4.1. Doorbell Module Block Diagram 4.5.4.2. Preserving Transaction Order 4.5.4.3. Doorbell Message Generation 4.5.4.4. Doorbell Message Reception
4.5.5. Avalon® -ST Pass-Through Interface x
4.5.5.1. Pass-Through Interface Examples
4.6. Error Detection and Management x
4.6.1. Physical Layer Error Management 4.6.2. Logical Layer Error Management 4.6.3. Avalon® -ST Pass-Through Interface
4.6.1. Physical Layer Error Management x
4.6.1.1. Protocol Violations 4.6.1.2. Fatal Errors
4.6.2. Logical Layer Error Management x
4.6.2.1. Maintenance Avalon® -MM Slave 4.6.2.2. Maintenance Avalon® -MM Master 4.6.2.3. Port-Write Reception Module 4.6.2.4. Port-Write Transmission Module 4.6.2.5. Input/Output Avalon® -MM Slave 4.6.2.6. Input/Output Avalon® -MM Master
4.6.2.1. Maintenance Avalon® -MM Slave x
4.6.2.1.1. Standard Error Management Registers 4.6.2.1.2. Registers in the Implementation Defined Space 4.6.2.1.3. Maintenance Avalon® -MM Slave Interface's Error Indication Signal
4.6.2.5. Input/Output Avalon® -MM Slave x
4.6.2.5.1. Standard Error Management Registers 4.6.2.5.2. Registers in the Implementation Defined Space 4.6.2.5.3. The Avalon® -MM Slave Interface's Error Indication Signal
4.6.2.6. Input/Output Avalon® -MM Master x
4.6.2.6.1. Standard Error Management Registers 4.6.2.6.2. Response Packets with ERROR Status
5. Signals x
5.1. Physical Layer Signals 5.2. Transport and Logical Layer Signals
5.1. Physical Layer Signals x
5.1.1. Status Packet and Error Monitoring Signals 5.1.2. Multicast Event Signals 5.1.3. Receive Priority Retry Threshold-Related Signals 5.1.4. Physical Layer Buffer Status Signals 5.1.5. Transceiver Signals 5.1.6. Register-Related Signals
5.2. Transport and Logical Layer Signals x
5.2.1. Avalon® -MM Interface Signals 5.2.2. Avalon® -ST Pass-Through Interface Signals 5.2.3. Error Management Extension Signals 5.2.4. Packet and Error Monitoring Signal for the Transport Layer
6. Software Interface x
6.1. Physical Layer Registers 6.2. Transport and Logical Layer Registers
6.2. Transport and Logical Layer Registers x
6.2.1. Capability Registers (CARs) 6.2.2. Command and Status Registers (CSRs) 6.2.3. Maintenance Interrupt Control Registers 6.2.4. Receive Maintenance Registers 6.2.5. Transmit Maintenance Registers 6.2.6. Transmit Port-Write Registers 6.2.7. Receive Port-Write Registers 6.2.8. Input/Output Master Address Mapping Registers 6.2.9. Input/Output Slave Mapping Registers 6.2.10. Input/Output Slave Interrupts 6.2.11. Transport Layer Feature Register 6.2.12. Error Management Registers 6.2.13. Doorbell Message Registers
7. Testbench x
7.1. Reset, Initialization, and Configuration 7.2. Maintenance Write and Read Transactions 7.3. SWRITE Transactions 7.4. NWRITE_R Transactions 7.5. NWRITE Transactions 7.6. NREAD Transactions 7.7. Doorbell Transactions 7.8. Doorbell and Write Transactions With Transaction Order Preservation 7.9. Port-Write Transactions 7.10. Transactions Across the Avalon® -ST Pass-Through Interface
8. Platform Designer (Standard) Design Example x
8.1. Creating a New Intel® Quartus® Prime Project 8.2. Running Platform Designer (Standard) 8.3. Simulating the System
8.2. Running Platform Designer (Standard) x
8.2.1. Adding and Parameterizing the RapidIO Component 8.2.2. Adding and Connecting Other System Components 8.2.3. Connecting Clocks and the System Components 8.2.4. Generating the System
8.2.2. Adding and Connecting Other System Components x
8.2.2.1. Adding the Master Maintenance BFM 8.2.2.2. Adding the Master I/O BFM 8.2.2.3. Adding the On-Chip Memory
8.2.3. Connecting Clocks and the System Components x
8.2.3.1. Connecting Unconnected Clocks 8.2.3.2. Connecting System Components 8.2.3.3. Assigning Addresses and Setting the Clock Frequency
B. Porting a RapidIO Design from the Previous Version of Software x
B.1. Upgrading a RapidIO Design Without Changing Device Family B.2. Upgrading a RapidIO Design to the Intel® Arria® 10 and Intel® Cyclone® 10 GX Device Families
Product Discontinuance Notification
1. About the RapidIO Intel FPGA IP Core
2. Getting Started
3. Parameter Settings
4. Functional Description
5. Signals
6. Software Interface
7. Testbench
8. Platform Designer (Standard) Design Example
9. RapidIO Intel FPGA IP User Guide Archives
10. Document Revision History for the RapidIO Intel® FPGA IP User Guide
A. Initialization Sequence
B. Porting a RapidIO Design from the Previous Version of Software

4.3.7.1. Transmit and Retransmit Queues

To meet the RapidIO specification requirements for packet priority handling and deadlock avoidance, the Physical layer transmit buffer implements four transmit queues and four retransmit queues, one for each priority level.

As the Transport layer writes packets to the Physical layer, the Physical layer adds them to the end of the appropriate priority transmit queue. The transmitter always transmits the packet at the head of the highest priority non-empty queue. After the packet is transmitted, the Physical layer moves the packet from the transmit queue to the corresponding priority retransmit queue.

When a packet-accepted control symbol is received for a non-acknowledged transmitted packet, the transmit buffer block removes the accepted packet from its retransmit queue.

If a packet-retry control symbol is received, all of the packets in the retransmit queues are returned to the head of the corresponding transmit queues. The transmitter sends a restart-from-retry symbol, and the transmission resumes with the highest priority packet available, possibly not the same packet that was originally transmitted and retried. The Transport layer might have written higher priority packets to the Physical layer since the retried packet was originally transmitted. In that case, the higher priority packets are chosen automatically to be transmitted before lower priority packets are retransmitted.

The Physical layer protocol and flow control engine ensures that a maximum of 31 unacknowledged packets are transmitted, and that the ackIDs are used and acknowledged in ascending order.

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