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UFS (Universal Flash Storage)

UFS Protocol Analyzer settings. This feature is available only on selected BusFinder models.

For application notes, probe connection, and measurement details, see Protocol Solution — UFS.

Supported Models

BusFinder

BF7264B BF7264B+ BF7264BPro
● ●

This feature requires purchasing an additional option.

Settings

UFS Settings

UFS Protocol Analyzer settings (BusFinder)
  • Settings:
    • Connection: Select how BF7264B+ / Pro connects to the DUT (for example UFS Fixture).
    • Startup: Startup conditions of the DUT at capture time.
      • Mode: Startup mode (for example PWM). Default: PWM.
      • Lane: Number of lanes (for example 1 Lane / 2 Lane). Default: 1 Lane.
      • Gear: Gear for the selected mode (for example PWM-Gear1). Default: PWM-Gear1.
      • Reference Clock: Reference clock frequency (19.2 / 26 / 38.4 / 52 MHz). This value must be set correctly even if RefClk is not connected; otherwise analysis may fail.
    • UFS Probe Settings: Probe / lane wiring settings.
      • Way Station pinout for each lane (TX/RX p, n, RefClk, etc.); swap p/n per lane as wired.
      • Show RefClk: Show RefClk measurement data in the result. Default: cleared.
      • UFS-tip Settings: Open the UFS-tip Settings dialog (see below) for tip pin options. Default: all items cleared.
        • Reset pin (CH4): Enable UFS Reset pin detection. Reset must connect to UFS probe LA tip CH4; when Reset is seen, Power mode is reset to PWM mode.
        • Show Volt. Detect Ch — VCC(A0) / VCCQ2(A1): Show tip voltage-detect channels A0 / A1 (VCC / VCCQ2; used with voltage-drop trigger — see Settings — Voltage Range Settings).
    • Filter: With Data Filter enabled, the length field is enabled (Enable); drop trailing payload beyond the set byte length. Default: cleared (about 256 bytes when enabled).
    • Option:
      • Force Off Descramble: Skip descramble and show scrambled data only. Default: cleared.
      • Ignore Error when 'Data Frame TC0' Size > 'UPIU' Size: Ignore that size mismatch error when checked. Default: checked.
    • Detail Report Display: Detail report presentation. Default: Table only.
      • Table + Text: Table plus textual decode.
      • Table only: Table only.
  • Trigger settings:
    • Trigger On: Up to 8 trigger conditions. Main Default does not reset the trigger list.
      • Unipro / UFS packets, SCSI Command items (for example Any UFS packets or a specific SCSI command).
      • Unknown Packet / CRC Error: Trigger on unknown packets or CRC errors.
      • VCC(A0) Drop / VCCQ2(A1) Drop: Voltage-drop trigger; open Voltage Range Settings (see Settings — Voltage Range Settings). Typical VCC about 2.70–3.60 V, VCCQ2 about 1.70–1.95 V.
      • Clear All: Clear configured triggers.

Open this dialog from UFS Probe Settings → UFS-tip Settings. The left side shows the tip pinout (including CH4 / A0 / A1). Enable Reset pin (CH4) and, under Show Volt. Detect Ch, VCC(A0) / VCCQ2(A1) as needed. Dialog Default: all items cleared.

UFS-tip Settings

UFS: UFS-tip Settings

See also