Skip to content

USB 1.1 Trigger (Universal Serial Bus)

USB 1.1 trigger supports frame events (Start / End of frame, SE0, Bus Idle, Idle State), error checks, and Clause Trigger pattern match on PID / Address / Frame Number / Data.

Mismatched USB Speed (Full / Low) versus the bus will not trigger. See Settings and Clause Trigger.

Trigger Settings

USB 1.1 Trigger

USB 1.1 Trigger
  • Channel: Assign Dp / Dn channels.
  • USB Speed: Full Speed / Low Speed. Default: Full Speed.
  • Simple Trigger: Start of frame / End of frame / SE0 / Bus Idle / Idle State. Field enabled (Enable) when selected. Default: all cleared.
  • Error Trigger: PID Error / CRC5 Error / CRC16 Error / EOP Error / Bit Stuff Error. Field enabled (Enable) when selected. Default: all cleared.
  • Clause Trigger: See Clause Trigger.
  • State: Enter PID, Frame Number, Address, Data as a data pattern, or leave X / XXh / XXXh. Hex ends with h, binary with b.
    • PID: Default: Any.
    • Frame Number: Default: XXXh.
    • Address: Range compare (= / != / >= / <= / In Range / Not In Range). Default: =; Address Default: XXh.
    • Data: Up to 4 bytes; unused = XXh.
    • Offset: Any Offset / Fixed Offset. Default: Any Offset; offset 0.

See also