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T2M Verification IPs UAS VIP


Description and Features

UAS VIP provides an smart way to verify the UAS component of a SOC or a ASIC. It provides backward compatibility support for earliers versions UAS specifications. The UAS Verification IP is fully compliant with standard UAS Specification. UAS data transfer can be done at full speed (12 Mbit/s). The UAS VIP includes an extensive test suite covering most of the possible scenarios. It performs all possible protocol tests in a directed or a highly randomized fashion which adds the possibility to create most wide range of scenarios to verify the DUT effectively. This way it detects the violation of protocol completely. UAS VIP is supported natively in SystemVerilog, VMM, RVM, AVM, OVM, UVM, Verilog, SystemC, VERA, Specman E and non-standard verification env UAS VIP comes with optional Smart Visual Protocol Debugger (Smart ViPDebug), which is GUI based debugger to speed up debugging.



  • Compliant with the USB attached SCSI specification UAS 3, Rev 4b.
  • Compliant with the USB 2.0 specification.
  • Compliant with the USB 3.0/3.1/3.2 specifications.
  • Compliant with the SCSI Architecture Model 6 (SAM- 6).
  • Compliant with the SCSI primary commands (SPC-6).
  • Supports Standard USB 2.0 interface, UTMI, UTMI+, ULPI and Serial interfaces
  • Supports Superspeed USB 3.0, SuperSpeedPlus 3.1, 3.2 and 3.0 OTG
  • Supports Application client to generate SCSI primary command sets
  • Supports upto 127 USB device domains
  • Supports single and complex UAS Domains
  • Supports Configuration summary descriptors
  • Supports the following Information units • COMMAND IU • RESPONSE IU • SENSE IU • READ READY IU • WRITE READY IU • TASK MANAGEMENT IU
  • Supports USB retimers, reset and I_T nexus loss
  • Supports all types of USB error injection and detection
  • Proficiency to generate random frames and respond to frames in directed or randomized fashion.
  • Rich set of configuration parameters to control UAS functionality.
  • Monitors, detects and notifies the test bench of all protocol and timing errors.
  • Supports constrained randomization of protocol attributes.
  • Status counters for various events.
  • Callbacks in initiator, target and monitor for various events.
  • USB Attached SCSI Verification IP comes with complete test suite to test every feature of UAS specification including USB 2 and USB 3 standards.
  • Functional coverage for complete UAS features.


  • Complete regression suite containing all the UAS testcases.
  • Examples showing how to connect various components, and usage of BFM and Monitor.
  • Detailed documentation of all class, task and function's used in verification env.
  • Documentation also contains User's Guide and Release notes.