Loop count: Always infinite. I.e. when the waveform generation has started, 
waveforms are being generated until the instrument is stopped. 
  The segment lengths of channel 1, channel 2, channel 3 and channel 4 may be 
different 
  Sequences and scenarios are not available from internal memory 
The option sequencing (Option –SEQ) does not affect the capabilities of the internal 
memory. 
The M8195A offers sequencing functionality for channels sourced from extended 
memory. Option sequencing (Option -SEQ) enables an extended set of sequencing 
functionality. 
 
With option -SEQ following sequencing functionality is available: 
  Up to ~16 Mio unique segments can be defined where each segment length 
may be different 
  Sequencing hierarchy: Segment, sequence, scenario 
  Trigger modes: Continuous, triggered, gated 
  Arm Mode: Self armed and armed 
  Advancement modes: Auto, conditional,repeat, single 
  Sequencer modes: Arbitrary, sequence scenario 
  Dynamic sequencing 
   
Without option -SEQ the sequencing capabilities of the instrument are: 
  One segment. Loop counter for this segment 
  Trigger modes: Continuous, triggered, gated 
  Arm Mode: Self armed and armed 
  Advancement modes: Auto, conditional,repeat, single 
  Sequencer Mode: Arbitrary 
 
For operation in instrument mode ‘Dual Channel’ or instrument mode ‘Four Channel’, all 
channels sourced from extended memory of M8195A behave identical with respect to 
sequencing. i.e. there is one sequence table available for the M8195A. Certainly the 
waveforms of the channels can be different for any segment number. 
The sequencer is implemented in a table. Each table entry consists of a sequence 
vector, which contains all the necessary information that is required to play one single 
waveform segment like loop counter values, advancement parameters and references 
to the sample memory. Multiple adjacent sequence vectors can also be played together 
within one run. The first sequence table entry is marked with a start pointer. After 
having finished one segment, the next table entry of the list is selected. If an actually 
executed segment is the last segment of a loop a jump to the starting point of the loop 
might be initiated depending on the loop count.