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1. Datasheet
2. Quick Start Guide
3. Parameter Settings
4. Physical Layout
5. 64- or 128-Bit Avalon-MM Interface to the Endpoint Application Layer
6. Registers
7. Reset and Clocks
8. Interrupts for Endpoints
9. Error Handling
10. Design Implementation
11. Throughput Optimization
12. Additional Features
13. Avalon-MM Testbench and Design Example
14. Avalon-MM Testbench and Design Example for Root Port
15. Hard IP Reconfiguration
16. Debugging
A. PCI Express Protocol Stack
B. Transaction Layer Packet (TLP) Header Formats
C. Lane Initialization and Reversal
D. Arria® 10 or Cyclone® 10 GX Avalon® -MM Interface for PCIe* Solutions User Guide Archive
E. Document Revision History
1.1. Arria® 10 or Cyclone® 10 GX Avalon-MM Interface for PCIe Datasheet
1.2. Features
1.3. Release Information
1.4. Device Family Support
1.5. Configurations
1.6. Design Examples
1.7. IP Core Verification
1.8. Resource Utilization
1.9. Recommended Speed Grades
1.10. Creating a Design for PCI Express
3.1. Parameters
3.2. Avalon-MM Settings
3.3. Base Address Register (BAR) Settings
3.4. Device Identification Registers
3.5. PCI Express and PCI Capabilities Parameters
3.6. Configuration, Debug, and Extension Options
3.7. Vendor Specific Extended Capability (VSEC)
3.8. PHY Characteristics
3.9. Example Designs
5.1. 32-Bit Non-Bursting Avalon-MM Control Register Access (CRA) Slave Signals
5.2. Bursting and Non-Bursting Avalon® -MM Module Signals
5.3. 64- or 128-Bit Bursting TX Avalon-MM Slave Signals
5.4. Clock Signals
5.5. Reset, Status, and Link Training Signals
5.6. Interrupts for Endpoints when Multiple MSI/MSI-X Support Is Enabled
5.7. Hard IP Status Signals
5.8. Physical Layer Interface Signals
6.1. Correspondence between Configuration Space Registers and the PCIe Specification
6.2. Type 0 Configuration Space Registers
6.3. Type 1 Configuration Space Registers
6.4. PCI Express Capability Structures
6.5. Intel-Defined VSEC Registers
6.6. CvP Registers
6.7. 64- or 128-Bit Avalon-MM Bridge Register Descriptions
6.8. Programming Model for Avalon-MM Root Port
6.9. Uncorrectable Internal Error Mask Register
6.10. Uncorrectable Internal Error Status Register
6.11. Correctable Internal Error Mask Register
6.12. Correctable Internal Error Status Register
6.7.1.1. Avalon-MM to PCI Express Interrupt Status Registers
6.7.1.2. Avalon-MM to PCI Express Interrupt Enable Registers
6.7.1.3. PCI Express Mailbox Registers
6.7.1.4. Avalon-MM-to-PCI Express Address Translation Table
6.7.1.5. PCI Express to Avalon-MM Interrupt Status and Enable Registers for Endpoints
6.7.1.6. Avalon-MM Mailbox Registers
6.7.1.7. Control Register Access (CRA) Avalon-MM Slave Port
13.5.1. ebfm_barwr Procedure
13.5.2. ebfm_barwr_imm Procedure
13.5.3. ebfm_barrd_wait Procedure
13.5.4. ebfm_barrd_nowt Procedure
13.5.5. ebfm_cfgwr_imm_wait Procedure
13.5.6. ebfm_cfgwr_imm_nowt Procedure
13.5.7. ebfm_cfgrd_wait Procedure
13.5.8. ebfm_cfgrd_nowt Procedure
13.5.9. BFM Configuration Procedures
13.5.10. BFM Shared Memory Access Procedures
13.5.11. BFM Log and Message Procedures
13.5.12. Verilog HDL Formatting Functions
A.4.1. Avalon‑MM Bridge TLPs
A.4.2. Avalon-MM-to-PCI Express Write Requests
A.4.3. Avalon-MM-to-PCI Express Upstream Read Requests
A.4.4. PCI Express-to-Avalon-MM Read Completions
A.4.5. PCI Express-to-Avalon-MM Downstream Write Requests
A.4.6. PCI Express-to-Avalon-MM Downstream Read Requests
A.4.7. Avalon-MM-to-PCI Express Read Completions
A.4.8. PCI Express-to-Avalon-MM Address Translation for 32-Bit Bridge
A.4.9. Minimizing BAR Sizes and the PCIe Address Space
A.4.10. Avalon® -MM-to-PCI Express Address Translation Algorithm for 32-Bit Addressing
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1.5. Configurations
The Avalon-MM Arria® 10 Hard IP for PCI Express includes a full hard IP implementation of the PCI Express stack comprising 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)
When configured as an Endpoint, the Arria® 10 or Cyclone® 10 GX Hard IP for PCI Express using the Avalon-MM supports memory read and write requests and completions with or without data.
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.