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USB 1.1 (Universal Serial Bus)

USB (Universal Serial Bus) was driven by Intel, Microsoft, National Semiconductor, Compaq, Northern Telecom, NEC, and AT&T (from about 1994). USB 1.1 (1998) is about 12 Mbps; USB 2.0 (2000) up to 480 Mbps. Host–device communication uses differential D+ / D-.

Wrong speed (Low / Full / Auto) or descriptor decode options affect the report. See Settings.

Decode Settings

Decode Settings

USB 1.1 Decode Settings
  • D+: D+ for USB 1.1 data.
  • D-: D- for USB 1.1 data.
  • USB 1.1 Settings: Low-Speed / Full-Speed or Auto; optionally decode standard requests and descriptors. Default speed: Auto; descriptor decode Default: cleared.
  • Mark PID: Highlight selected PID types in the report. Default: index 0.
  • Show Data: 8 or 16 columns in the report. Default: index 0 (8 columns).
  • PID Filter: Hide selected PIDs. Default: all filter items cleared.
  • Show Scale in Waveform: Show scale on the waveform. Field enabled (Enable) when checked. Default: cleared.

Result

USB 1.1 Result

USB 1.1 decode result

See also