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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
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
2.6.1. 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
2.9.1. 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
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
7.1. 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
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4.2.1.5. Baud Rates and Clock Frequencies
The RapidIO specification specifies baud rates of 1.25, 2.5, 3.125, and 5.0 Gbaud.
Baud Rate (Gbaud) |
rxgxbclk (MHz) | txclk, rxclk (MHz) |
Avalon® system clock (sysclk) | |||
1x | 2x | Minimum (MHz) | Typical (MHz) |
Maximum (MHz) 19 |
||
1.25 | 62.5 | 31.25 | 31.25 | 15.625 | 31.25 | 46.875 |
2.5 | 125 | 62.5 | 62.5 | 31.25 | 62.5 | 93.75 |
3.125 | 156.25 | 78.125 | 78.125 | 39.065 | 78.125 | 117.19 |
5.0 | 25020 | 125 | 125 | 62.50 | 125 | 187.50 |
Baud Rate (Gbaud) |
rxgxbclk (MHz) | Avalon® System Clock (sysclk) | ||
Minimum (MHz) | Typical (MHz) |
Maximum (MHz)19 |
||
1.25 | 62.5 | 31.25 | 62.5 | 93.75 |
2.5 | 125 | 62.5 | 125 | 187.5 |
3.125 | 156.25 | 78.125 | 156.25 | 234.275 |
5.0 | 250 | 125 | 250 | 250 |
Note: The default reference clock frequency is 125 MHz across all device variations. You can select different reference clock frequencies from the set of allowed reference clock frequencies.
The reference clock is called clk.
19 The maximum system clock frequency might be limited by the achievable fMAX and can vary based on the family and speed grade.
20 For Arria® V and Cyclone® V device variations, the rxgxbclk frequency in RapidIO IP core 1x variations at 5 GBaud, is 125 MHz.