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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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4.3.6.2. Error Conditions Flagged for the Transport Layer
The Physical layer passes data from the receive buffer to the Transport layer in 64-Kbyte blocks. The Physical layer might identify an error condition after it begins passing a packet from the receive buffer to the Transport layer. In that case, the Physical layer flags an Errored packet indication to the Transport layer. The Physical layer flags an Errored packet in the following cases:
- CRC error—when a CRC error is detected, the packet_crc_error signal is asserted for one rxclk clock period. If the packet size is at least 64 bytes, the Physical layer flags the error. If the packet size is less than 64 bytes, the Physical layer identifies and drops the errored packet before it begins sending the packet to the Transport layer.
- Stomp—the Physical layer flags an error if it receives a stomp control symbol in the midst of a packet, causing the packet to be prematurely terminated.
- Packet size—if a received packet exceeds the allowable size, the Physical layer cuts it short to the maximum allowable size (276 bytes total), and flags the error.
- Outgoing symbol buffer full—under some congestion conditions, the outgoing symbol buffer has no space available for the packet_accepted control symbol. In this case, the RapidIO IP core cannot acknowledge the packet, and the link partner must retry transmission. The Physical layer flags an error to indicate to the Transport layer that it should ignore the received packet because it will be retried.
- Control symbol error —if an embedded or packet-delimiting control symbol is errored, the Physical layer flags the error. The packet in which the errored control symbol is embedded should be retransmitted by the link partner as part of the error recovery process.
- Character error—if the Physical layer receives an errored character (an invalid 10-bit code, or a character of wrong disparity) or an illegal character (any control character other than the non-delimiting Start of Control (SC) character inside a packet) within a packet. In this case the Physical layer flags the error and drops the rest of the packet.