The design solution space for high-speed serial links is becoming increasingly complex with increasing data rates, diverse channel topologies, and tuning parameters for active components. PCI Express® 5.0, at 32 GT/s, is a particularly relevant example of an application whose design solution space can be a daunting problem to tackle, given the performance-cost requirements of its end equipment. This paper is intended to help system designers navigate these design challenges by providing a how-to guide for defining, executing, and analyzing system-level simulations, including PCIe 5.0 Root Complex (RC), Retimer, and End Point (EP).
In this demonstration, Head of Systems and Applications Casey Morrison, showcases Astera Labs’ PCIe® Smart Retimer in a Gen 4.0 SSD application.
The proliferation of heterogeneous computing and distributed workloads requires more SSDs running at a faster speed, causing signal integrity challenges. The Aries Smart Retimer can be used to improve the performance of SSD, ensuring SSDs are operating at the maximum PCIe Gen 4.0 speed.
In this video, Casey Morrison gives a quick tutorial on PCIe® Retimers – What do they do? When to use them? What key features to look for? PCI-SIG compliance requirements, etc.
Signal-integrity challenges will be significant in PCIe Gen 4.0 and Gen 5.0 due to increased data rates. A PCIe Retimer is a cost-optimized option to provide more margins and enable a robust link. Compliance tests meeting electrical and protocol specifications, latency, small total footprint, power consumption, bifurcation capacity, in-band and side-band diagnostics are key features system designers should look for in Retimers.
In this PCI-SIG® hosted webinar, Kurt Lender of Intel and Casey Morrison of Astera Labs offer solutions to address signal-integrity and channel insertion loss challenges to ensure the full potential of the increased bandwidth offered by PCIe® Gen 4.0 and 5.0 are achieved.
As PCIe specifications continue to double the transfer rates of previous generations, the technology can address various needs for demanding applications, while signal-integrity and channel insertion loss challenges arise as well. Retimers are mixed-signal analog/digital devices that are protocol-aware and able to fully recover data, extract the embedded clock and retransmit a fresh copy of the data using a clean clock. These devices are fully defined in the PCI Express base specification, including compliance testing, and are used to combat issues that PCI Express faces.
Retimers and Redrivers have enabled longer physical channels in servers and storage systems since Peripheral Component Interface Express (PCIe®) 3.0 was first introduced almost 10 years ago. Now that PCIe 4.0 is ramping up and PCIe 5.0 is just around the corner, how do these reach extension tools stack up in the face of new challenges in high-speed connectivity?
This article explains the differences between Retimers and Redrivers in IC block diagram, capabilities and use cases.