GTS AXI Streaming Intel® FPGA IP for PCI Express* User Guide

ID 813754
Date 11/04/2024
Public
Document Table of Contents

5.2.2.3.12. PCIe0/PCIe1 Power Management

Table 43.   GTS AXI Streaming IP Parameters: Power Management Tab
Parameter Value Default Setting Description
Endpoint L0s acceptable latency
  • Maximum of 64 ns
  • Maximum of 128 ns
  • Maximum of 256 ns
  • Maximum of 512 ns
  • Maximum of 1 μs
  • Maximum of 2 μs
  • Maximum of 4 μs
  • No limit
Maximum of 64 ns Sets the read-only value of the endpoint L0s acceptable latency field of the Device Capabilities register. This value should be based on the latency that the application layer can tolerate for any link between the device and the Root complex to exit the L0s state. This setting is disabled for root ports.
Endpoint L1 acceptable latency
  • Maximum of 1 μs
  • Maximum of 2 μs
  • Maximum of 4 μs
  • Maximum of 8 μs
  • Maximum of 16 μs
  • Maximum of 32 μs
  • Maximum of 64 μs
  • No limit
Maximum of 1 μs Sets the acceptable latency that an endpoint can withstand in the transition from the L1 to L0 state. It is an indirect measure of the endpoint internal buffering. This setting is disabled for root ports.