shail Posted September 15, 2011 Report Share Posted September 15, 2011 UVM userguide has following statement that I could not understand. Can anyone please elaborate? Explanation while comparing to `do-ing item would help even more. The sequencer does not schedule sequences but only items; therefore, when do-ing a sequence, no synchronization is done between the sequencer and the doing sequence or the done subsequence Quote Link to comment Share on other sites More sharing options...
jadec Posted September 15, 2011 Report Share Posted September 15, 2011 `uvm_do(item) performs 4 tasks: item create item randomize item start - synchronize with driver get_next_item item finish - synchronize with driver item_done `uvm_do(seq) performs 3 tasks: seq create seq randomize seq start - this is the regular seq.start() the sequencer is not involved until the started sequence tries to do an item Quote Link to comment Share on other sites More sharing options...
uwes Posted September 16, 2011 Report Share Posted September 16, 2011 hi, the main point is that a sequence is expanded directly in zero time while an item goes through arbitration and that only if it is being pulled from the driver. /uwe Quote Link to comment Share on other sites More sharing options...
shail Posted September 19, 2011 Author Report Share Posted September 19, 2011 Got it. Thanks Quote Link to comment Share on other sites More sharing options...
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