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Benefits

  • Full Generational Support – From PCIe 1.0 through PCIe 6.0, with scalability to 7.0 and 8.0.
  • Future-Proofing – Prepare for next-gen workloads before PCIe 7.0/8.0 hardware arrives.
  • Performance Visibility – Track latency, throughput, buffer utilization, and arbitration.
  • Backward Compatibility – Model hybrid systems mixing PCIe6 with earlier PCIe devices.
  • Design Efficiency – Explore “what-if” trade-offs in days, not months.
  • Reduced Risk – Catch performance bottlenecks before hardware prototyping.

The PCIe6 Bus Block in VisualSim models the latest generation of the PCI Express standard, delivering high bandwidth, low latency, and robust reliability for next-generation SoCs, servers, and data centers.

It supports point-to-point, multi-lane communication and is backward compatible with earlier PCIe versions (Gen1–Gen5). Built-in features such as flow control, error correction, CRC checks, retries, selective acknowledgment, and replay buffers ensure data integrity and fault tolerance.

Most importantly, VisualSim’s PCIe6 model is designed for scalability, meaning it can already be configured to explore PCIe 7.0 and PCIe 8.0 requirements — allowing architects to validate future workloads today.

Key Parameters

  • Architecture_Setup_Name – Define PCIe6 configuration.
  • PCIe_Switch_Name – Identify switch fabric.
  • Max_Read_Req_Size_Bytes – Maximum transaction size.
  • Flit_Size_Bytes – Configurable FLIT unit.
  • Number_of_Lanes – Single- to multi-lane scalability.
  • Buffer_Size_Bytes – Queue depth.
  • Overhead_Cycles – Latency impact of headers/encoding.
  • Devices_Attached_to_Ports – System scaling to 12 devices.

Parameter Snapshots

  • PCIe6

Simulation Results

  • Latency & Throughput Analysis – End-to-end PCIe6 and PCIe7 readiness.
  • Error Handling Studies – Retry, CRC, and selective acknowledgment.
  • Scaling Studies – Gen1–Gen6 with projections for Gen7 and Gen8.
  • Arbitration & Buffer Utilization – Validate fairness, QoS, and efficiency.
  • Setup
  • Stats

Application

  • Data Centers & Cloud – PCIe 6.0+ interconnects for servers, GPUs, and accelerators.
  • AI & HPC Systems – High-bandwidth I/O for training and inference workloads.
  • Semiconductor SoCs – Integration of PCIe6/7-ready IP into CPU, GPU, and NPU-based chips.
  • Networking Systems – Routers, switches, and baseband processors with PCIe scaling.
  • Storage – NVMe over PCIe Gen6 for hyperscale SSD deployment.
  • Automotive & Aerospace – Future-ready platforms requiring high-speed data transfer.

Integrations

  • Connects with NVMe, Flash, DDR, LPDDR, and HBM controllers.
  • Works with processors, GPUs, NPUs, and accelerators.
  • Interfaces with NoC, CXL, and DMA blocks for heterogeneous SoC studies.

View Demo

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