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1. Datasheet
2. Getting Started with the Avalon‑MM Arria V Hard IP for PCI Express
3. Parameter Settings
4. Interfaces and Signal Descriptions
5. Registers
6. Interrupts for Endpoints
7. Error Handling
A. PCI Express Protocol Stack
8. Design Implementation
9. Additional Features
10. Transceiver PHY IP Reconfiguration
11. Debugging
B. Frequently Asked Questions for PCI Express
C. Lane Initialization and Reversal
D. Document Revision History
5.1. Correspondence between Configuration Space Registers and the PCIe Specification
5.2. Type 0 Configuration Space Registers
5.3. Type 1 Configuration Space Registers
5.4. PCI Express Capability Structures
5.5. Intel-Defined VSEC Registers
5.6. CvP Registers
5.7. 64- or 128-Bit Avalon-MM Bridge Register Descriptions
5.8. Programming Model for Avalon-MM Root Port
5.9. Uncorrectable Internal Error Mask Register
5.10. Uncorrectable Internal Error Status Register
5.11. Correctable Internal Error Mask Register
5.12. Correctable Internal Error Status Register
5.7.1.1. Avalon-MM to PCI Express Interrupt Status Registers
5.7.1.2. Avalon-MM to PCI Express Interrupt Enable Registers
5.7.1.3. PCI Express Mailbox Registers
5.7.1.4. Avalon-MM-to-PCI Express Address Translation Table
5.7.1.5. PCI Express to Avalon-MM Interrupt Status and Enable Registers for Endpoints
5.7.1.6. Avalon-MM Mailbox Registers
5.7.1.7. Control Register Access (CRA) Avalon-MM Slave Port
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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8.3. Recommended Reset Sequence to Avoid Link Training Issues
- Wait until the FPGA is configured as indicated by the assertion of CONFIG_DONE from the FPGA block controller.
- Deassert the mgmt_rst_reset input to the Transceiver Reconfiguration Controller IP Core.
- Wait for tx_cal_busy and rx_cal_busy SERDES outputs to be deasserted.
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Deassert pin_perstn to take the Hard IP for PCIe out of reset. For plug-in cards, the minimum assertion time for pin_perstn is 100 ms. Embedded systems do not have a minimum assertion time for pin_perstn.
- Wait for thereset_status output to be deasserted
- Deassert the reset output to the Application Layer.