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PCI Express (PCIe) Controller IP

Delivering high-bandwidth interconnect performance

Home > Interface IP > PCI Express Controller IP

PCI Express Controller IP

Rambus silicon-proven, high-performance PCI Express® (PCIe®) 6.0, 5.0, 4.0 and earlier generation digital controllers are optimized for use in SoCs, ASICs and FPGAs. These market-leading solutions for high-performance interfaces address AI/ML, data center and edge applications.

Explore Products

PCIe Controller

PCIe Debug and Test Solutions & Add-On Cores

PCIe Interconnect Subsystem

PCIe Switch, Retimer, DMA & USB4 IP

Version	Maximum Data Rate (GT/s)	Controller	Controller with AXI
PCIe 6.0	64	Product Brief	Product Brief
PCIe 5.0	32	Product Brief	Product Brief
PCIe 4.0	16	Product Brief	Product Brief
PCIe 3.1	8	Product Brief	Product Brief
PCIe 2.1	5	Product Brief	Product Brief

PCIe Controller IP

Feature	PCIe 6.0 Controller	PCIe 5.0 Controller	PCIe 4.0 Controller	PCIe 3.1 Controller	PCIe 2.1 Controller
Data Rate (GT/s)	64	32	16	8	5
Data Path	Scalable	Scalable	Scalable	Scalable	Scalable
Topologies Supported	Root Port Endpoint Switch Port Dual-Mode	Root Port Endpoint Switch Port Dual-Mode	Root Port Endpoint Switch Port Dual-Mode	Root Port Endpoint Switch Port Dual-Mode	Root Port Endpoint Switch Port Dual-Mode
Duplex Lane Configurations	x1, x2, x4, x8, x16	x1, x2, x4, x8, x16	x1, x2, x4, x8, x16	x1, x2, x4, x8, x16	x1, x2, x4, x8, x16
Backward Compatibility	5.0, 4.0, 3.1/3.0	4.0, 3.1/3.0	3.1/3.0	3.0/2.1/2.0	1.1/1.0
Clock Gating/Power Gating	Yes
Advanced RAS	Yes	Yes	Yes	Yes	Yes
Virtual Channel Support	FLIT and non-FLIT mode
Forward Error Correction (FEC)	Yes
L0p Low Power Mode	Yes
Optional Features	IDE Security, AER, ECRC, ECC, MSI, MSI-X, Multifunction, Crosslink	AER, ECRC, ECC, MSI, MSI-X, Multifunction, Crosslink	AER, ECRC, ECC, MSI, MSI-X, Multifunction, Crosslink	AER, ECRC, ECC, MSI, MSI-X, Multifunction, Crosslink	AER, ECRC, ECC, MSI, MSI-X, Multifunction, Crosslink P2P

PCIe Switch, Retimer, DMA and USB4 IP

Solution	Product Brief	Description
PCIe 6.0 Retimer Controller		PCIe 6.0 Retimer Controller with CXL Support Provides Highly Optimized, Low-latency Data Path for Signal Regeneration
PCIe 5.0 Multi-port Switch		Customizable Multi-port Switch, Connects One Upstream Port to Up to 31 Downstream Ports
PCIe Controller for USB4		PCIe 5 Controller with USB4 Support, with Native Logic Interface Options
PCIe Controller for USB4 with AXI		PCIe 5 Controller with USB4 Support, with AXI Logic Interface Options
PCIe Switch for USB4		Customizable Switch with USB4 Support, Connects One Upstream Port to Up to 31 Downstream Ports

PCIe Debug and Test Solutions, and Add-On Cores

Solution	Product Brief	Description
INSPECTOR for PCIe 5.0		Interposer Card for Diagnostic Testing, Exercising and Debug of PCIe Devices at up to 32 GT/s
Gen5HOST		Host Enabling Reference Platform for Prototyping and Development of PCIe 5.0 Devices and Apps
Gen5ENDPOINT		Endpoint Reference Platform for Prototyping and Development of PCIe 5.0 Devices
XpressAGENT		Add-on Core Simplifies Observability and Expedites Debugging of PCIe and CXL subsystems

PCIe 6.0 Interconnect Subsystem

The Rambus PCIe 6.0 Controller exposes a highly efficient transmit (Tx) and receive (Rx) interface with configurable bus widths. Designed to satisfy a multitude of customer and industry use cases, the IP can be configured to support endpoint, root port, switch port, and dual-mode topologies, allowing for a variety of use models. The provided Graphical User Interface (GUI) Wizard allows designers to tailor the IP to their exact requirements, by enabling, disabling, and adjusting a vast array of parameters.

Rambus provides integration and validation of the PCIe 6.0 digital controller with the customer’s choice of 3^rd-party PCIe 6.0 PHY.

Data Center Evolution: The Leap to 64 GT/s Signaling with PCI Express 6.0

The PCIe interface is the critical backbone that moves data at high bandwidth and low latency between various compute nodes such as CPUs, GPUs, FPGAs, and workload-specific accelerators. With the torrid rise in bandwidth demands of advanced workloads such as AI/ML training, PCIe 6.0 jumps signaling to 64 GT/s with some of the biggest changes yet in the standard.