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1. Datasheet
2. Quick Start Guide
3. Arria® 10 or Cyclone® 10 GX Parameter Settings
4. Physical Layout
5. Interfaces and Signal Descriptions
6. Registers
7. Reset and Clocks
8. Interrupts
9. Error Handling
10. PCI Express Protocol Stack
11. Transaction Layer Protocol (TLP) Details
12. Throughput Optimization
13. Design Implementation
14. Additional Features
15. Hard IP Reconfiguration
16. Testbench and Design Example
17. Debugging
A. Transaction Layer Packet (TLP) Header Formats
B. Lane Initialization and Reversal
C. Arria® 10 or Cyclone® 10 GX Avalon-ST Interface for PCIe Solutions User Guide Archive
D. Document Revision History
3.1. Parameters
3.2. Arria® 10 or Cyclone® 10 GX Avalon-ST Settings
3.3. Base Address Register (BAR) and Expansion ROM Settings
3.4. Base and Limit Registers for Root Ports
3.5. Device Identification Registers
3.6. PCI Express and PCI Capabilities Parameters
3.7. Vendor Specific Extended Capability (VSEC)
3.8. Configuration, Debug, and Extension Options
3.9. PHY Characteristics
3.10. Example Designs
5.1. Clock Signals
5.2. Reset, Status, and Link Training Signals
5.3. ECRC Forwarding
5.4. Error Signals
5.5. Interrupts for Endpoints
5.6. Interrupts for Root Ports
5.7. Completion Side Band Signals
5.8. Parity Signals
5.9. LMI Signals
5.10. Transaction Layer Configuration Space Signals
5.11. Hard IP Reconfiguration Interface
5.12. Power Management Signals
5.13. Physical Layer Interface Signals
16.4.1. ebfm_barwr Procedure
16.4.2. ebfm_barwr_imm Procedure
16.4.3. ebfm_barrd_wait Procedure
16.4.4. ebfm_barrd_nowt Procedure
16.4.5. ebfm_cfgwr_imm_wait Procedure
16.4.6. ebfm_cfgwr_imm_nowt Procedure
16.4.7. ebfm_cfgrd_wait Procedure
16.4.8. ebfm_cfgrd_nowt Procedure
16.4.9. BFM Configuration Procedures
16.4.10. BFM Shared Memory Access Procedures
16.4.11. BFM Log and Message Procedures
16.4.12. Verilog HDL Formatting Functions
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1.4. Configurations
The Arria® 10 or Cyclone® 10 GX Hard IP for PCI Express includes a full hard IP implementation of the PCI Express stack including the following layers:
- Physical (PHY), including:
- Physical Media Attachment (PMA)
- Physical Coding Sublayer (PCS)
- Media Access Control (MAC)
- Data Link Layer (DL)
- Transaction Layer (TL)
The Hard IP supports all memory, I/O, configuration, and message transactions. It is optimized for Intel devices. The Application Layer interface is also optimized to achieve maximum effective throughput. You can customize the Hard IP to meet your design requirements.
Figure 2. PCI Express Application with a Single Root Port and EndpointThe following figure shows a PCI Express link between two Arria® 10 or Cyclone® 10 GX FPGAs.
Figure 3. PCI Express Application Using Configuration via Protocol The Arria® 10 design below includes the following components:
- Two Endpoints that connect to a PCIe switch.
- A host CPU that implements CvP using the PCI Express link connects through the switch.