Diodes Incorporated
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Automotive 8-Port, 16-Lane PCIe 3.0 Packet Switch


The Automotive PCIe® 3.0 Packet Switch family is a series of 6-32 lanes PCI Express third generation switches with 6 to 16 PCI Ex­press ports specifically designed to meet high performance, RAS (Reliability, Availability and Serviceability) and the latest power management system requirements of Zonal Central Controller, ADAS and telematics etc. The Automotive PCIe3 Packet Switch family provides elastic bifurcation for upstream and downstream ports. The superior signal integrity performance enables support for long PCIe trace length with loss more than 30 dB. The Automo­tive PCIe 3.0 Packet Switch family are able to connect up to 15 endpoints, such as PCIe- SSD drives, and support multi-host ap­plications and up to 8 DMA physical channels and 3 configurable Cross Domain End-Point (CDEP) ports for high performance fab­ric and failover applications.


  • Configurable Upstream port number up to 2 and lane number up to 16
  • Configurable Downstream port number up to 15 and lane number up to 30
  • PHY and MAC Layers
    • PHY initial settings optionally programmable through JTAG, EEPROM, and SMBus/I2C
    • Adaptive Continuous Time Linear Equalizer and 5-tap Decision Feedback Equalizer for RX
    • Adaptive and programmable 3-tap TX equalization
    • RX Polarity Inversion and Lane Reversal
  • Data Link Layer
    • Programmable ACK latency timer to response ACK based upon traffic condition
    • Configurable Flow Control Credit Update to balance bandwidth utilization and buffer usage
  • Transaction Layer
    • Packet forwarding options including Cut-Through and Store & Forward
    • Support up to 512-Byte Max Payload Size
    • Low packet forwarding latency < 150ns (typical case)
    • Access Control Service (ACS) for peer-to-peer traffic
    • Address Translation (AT) packet for SR-IOV application
    • Support Atomic operation
    • Support Multicast
    • Provide Performance Visibility for ingress/egress packet types and packet counts
  • Side-band Access Register Interface
    • I2C/ SMBus bus
    • JTAG


  • ADAS
  • Central Controller
  • Zonal ECU
  • Telematics
  • Infotainment
  • Cockpit Control
  • In-vehicle Communication

Product Specifications

Product Parameters

Ports 8
Lanes 16
Power 4.1 w
Latency 150 ns
Ambient or Junction Temperature (°C) -40 to 85
Compliance (Only Automotive supports PPAP) Automotive

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