General Description

ASMedia ASM3242 is a Universal Serial Bus xHCI host controller, bridging PCI Express to USB3.2 20Gbps, compliant with USB3.2 Specification Revision 1.0 and Intel eXtensible Host Controller Interface specification revision 1.1. It also supports backward compatible with legacy USB function and devices, compliant with USB Attach SCSI Protocol revision 1.0, supporting the function of debugport on USB3.2 port. ASMedia ASM3242 also supports the function of Multiple INs to achieve fully utilization rate of 20Gbps data rate, taking advantage of the available bandwidth of USB3.2 Gen2 x2 bus. ASM3242 supports one USB3.2 20Gbps port and perform trusting high speed bandwidth with PCI Express Gen3 x4. It uses advance process with low voltage supply, following standard PCI Express/USB Link power management and advance chip power management to reduce total power consumption efficiently under idle/standby state. ASM3242 integrates ASMedia self-designed PCI Express/SuperSpeed USB/USB2.0 PHY, supporting in box driver of Microsoft® Windows and various Linux kernels. The application of ASM3242 includes Motherboard, Desktop PC, Notebooks, Workstations, Servers, Add-in cards, PCI Express based embedded platform.


General Feature

  • Bridge PCI Express to USB3.2
  • Integrate eXtensible Host Controller
  • Compliant with eXtensible Host Controller Interface specification Revision 1.1
  • Upload firmware through external SPI ROM
  • External 20MHz differential crystal
  • Support in box driver of Microsoft® Windows
  • Support various Linux kernel

PCI Express Features

  • Support 4 lanes upstream port of PCI Express Gen3
  • Support high bandwidth performance with low latency
  • Support PCI Express Link power management
  • Compliant with PCI Express Base 3.1a Specification
  • Compliant with PCI Express Card Electromechanical 2.0 specification
  • Compliant with PCI Express Mini Card Electromechanical 1.2 specification
  • Compliant with PCI Bus Power Management Interface Specification Revision 1.2
  • Compliant with PCI Local Bus Specification Revision 3.0
  • Integrate Spread Spectrum Controller for PCI Express interface
  • Not support lane reversal

USB Features

  • Support one ports of USB3.2
  • Up to 20Gbps 
  • Compliant with Universal Serial Bus 3.1 Specification Revision 1.0
  • Compliant with Universal Serial Bus Specification Revision 2.0
  • Compliant with USB Attached SCSI Protocol Revision 1.0
  • Support Multiple INs function 
  • Support USB3.2 and USB2.0 Link Power Management
  • Support Control, Bulk, Stream, Interrupt, Isochronous transfer type
  • Support independent port power control 
  • Support overcurrent detection
  • Support Remote/Wakeup event
  • Integrate Spread Spectrum Controller for USB3.2 interface
  • Backward compatible with Legacy USB function and device
  • Support the Debugport

Package Type

Green Package 10x10 QFN88 (Pb-free) - RoHS Compliance

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