General Description

ASM1142 is an ASMedia first Universal Serial Bus 3.1 host controller, compliant with Intel eXtensible Hot Controller Interface specification revision 1.1, bridging PCI Express interface to two ports of USB3.1, up to 10Gbps high speed bandwidth, backward compatible with legacy USB function and devices. It can configure PCI Express as Gen2x2 or Gen3x1, compliant with USB Attach SCSI Protocol revision 1.0, supporting the functions of debugport.

ASM1142 integrates ASMedia self-designed PCI Express/USB 3.1 PHY, and it also integrates two internal regulators to supply normal core power and suspend core power, supporting the driver on Windows 7, Windows 8.0, Windows 8.1 and various Linux Kernels. The application of ASM1142 includes Motherboard, Desktop PC, Notebooks, Workstations, Servers, Add-in card, PCI Express based embedded platform.


General Feature

  • Bridge PCI Express to USB 3.1
  • Upload firmware through BIOS or external SPI ROM
  • External 20MHz differential crystal
  • Overclock capability on PCI Express bus under asynchronous mode
  • Integrate Spread Spectrum controller for PCI Express and USB3.1 interface
  • Integrate two regulators for normal core power supply and suspend core power supply
  • Support driver on Windows 7, Windows 8, and Windows 8.1
  • Support various Linux Kernels

PCI Express Feature

  • Support PCI Express Gen2x2 or Gen3x1
  • Up to 10Gbps bandwidth performance with low latency
  • Support PCI Express Link power management
  • Compliant with PCI Express Base 3.0 Specification
  • Compliant with PCI Express card Electromechanical 2.0 specification
  • Compliant with PCI Express Mini Card Electromechanical 1.2 specification
  • Compliant with Express Card Standard Revision 2.0
  • Compliant with PCI Bus Power Management Interface Specification Revision 1.2
  • Compliant with PCI Local Bus Specification Revision 3.0
  • Support overclocking capability on PCI Express interface

USB Feature

  • Support two port of USB3.1
  • Compliant with Universal Serial Bus 3.1 Specification Revision 1.0
  • Compliant with Universal Serial Bus Specification Revision 2.0
  • Compliant with eXtensible Host Controller Interface specification Revision 1.1
  • Compliant with USB Attached SCSI Protocol Revision 1.0
  • Support USB3.1 and USB2.0 Link Power Management
  • Support Control, Bulk, Stream, Interrupt, Isochronous transfer type
  • Support independent port power control
  • Support over current detection
  • Support Remote/Wakeup event
  • Backward compatible with Legacy USB function and device
  • Support the Debugport

Package Type

Green package 9x9 QFN64 (Pb-free)-RoHS Compliance

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