Intel® L- and H-tile Avalon® Memory-mapped+ IP for PCI Express* User Guide
ID
683527
Date
10/19/2021
Public
A newer version of this document is available. Customers should click here to go to the newest version.
1. Introduction
2. Quick Start Guide
3. Block and Interface Descriptions
4. Parameters
5. Designing with the IP Core
6. Registers
7. Design Example and Testbench
A. Troubleshooting and Observing the Link
B. Avalon-MM IP Variants Comparison
C. Root Port BFM
D. BFM Procedures and Functions
E. Root Port Enumeration
F. Document Revision History for Intel® L- and H-tile Avalon® Memory-mapped+ IP for PCI Express* User Guide
2.1. Design Components
2.2. Directory Structure
2.3. Generating the Design Example
2.4. Simulating the Design Example
2.5. Compiling the Design Example and Programming the Device
2.6. Installing the Linux Kernel Driver
2.7. Running the Design Example Application
2.8. Ensuring the Design Example Meets Timing Requirements
6.1.1. Register Access Definitions
6.1.2. PCI Configuration Header Registers
6.1.3. PCI Express Capability Structures
6.1.4. Intel Defined VSEC Capability Header
6.1.5. Uncorrectable Internal Error Status Register
6.1.6. Uncorrectable Internal Error Mask Register
6.1.7. Correctable Internal Error Status Register
6.1.8. Correctable Internal Error Mask Register
D.1. ebfm_barwr Procedure
D.2. ebfm_barwr_imm Procedure
D.3. ebfm_barrd_wait Procedure
D.4. ebfm_barrd_nowt Procedure
D.5. ebfm_cfgwr_imm_wait Procedure
D.6. ebfm_cfgwr_imm_nowt Procedure
D.7. ebfm_cfgrd_wait Procedure
D.8. ebfm_cfgrd_nowt Procedure
D.9. BFM Configuration Procedures
D.10. BFM Shared Memory Access Procedures
D.11. BFM Log and Message Procedures
D.12. Verilog HDL Formatting Functions
A.2.1.3.6. ltssm_save_oldstates
If you use ltssm_display or ltssm_save2file to read the LTSSM states and other status information, all that information is cleared after the execution of these commands. However, you can use the ltssm_save_oldstates command to overcome this hardware FIFO read clear limitation.
The first time you use ltssm_save_oldstates, it saves all states to the file provided at the command line. If you use this command again, it appends new readings to the same file and displays on the TCL console all the LTSSM states saved to the file.
This is a new command that is added in the 18.1 release of Intel® Quartus® Prime.