Level 2    , 'u'

  Quick Help:
     Enable/Disable Channel/Preamp Register Display, u[EnableDisableOpt]

    This command enables or disables the display of channel registers during retries.

  Input Parameters:

    0 - Enable/Disable Channel/Preamp Register Display.
        This parameter will enable or disable the display of channel registers during
        retries.  If this parameter is set to 1, then channel registers will be displayed
        during retries.  If this parameter is not entered or set to 0, then channel
        registers will not be displayed during retries.
          Type:    Unsigned 8-bit value
          Range:   0 to 1
          Default: 0 (Disable channel/preamp tracing)
  Output Data:

    If an error occurred, the following information will be displayed.
          "DiagError aaaaaaaa"
          aaaaaaaa is the Diagnostic Error Code
    If no error occurred, the status of Channel and Preamp register tracing will be displayed
    as follows.
          "Channel tracing ss..ss"
          "Preamp tracing ss..ss"
          ss..ss is either "enabled" or "disabled"
    NOTE: If the R/W firmware does NOT support Channel or Preamp Tracing, then the message
    will ALWAYS indicate that the feature is "disabled".
  Revision History:

    0001.0000   Initial revision.
    0011.0000   Combined the PSG Diagnostic Error Codes (PSGDEC) and the Diagnostic External
                Test Service Error Codes (DETSEC) into a single set of Diagnostic Error Codes