| 摘要 |
PURPOSE:To read data at an ultra-high speed by distributing the reproduction data having the prescribed reading priority to plural memories to write these data and also to establish them at each input terminal of a multiplexer. CONSTITUTION:The generated waveform data stored in a data holding memory 14 are distributed and written into 16 reproduction memories 16 and these reading orders are counted by a counter 17. Thus the reproduction data are established at each input terminal of a multiplexer (MPX) 18 set in response to each memory 16. Then a timing circuit 20 where a waveform generating seed is set and an input selection circuit 21 of the MPX 18 are actuated by a waveform generating command given from a CPU 12, etc. The reading-priority data on the input terminal designated by the circuit 21 is established at an input terminal of a latch 22 and delivered in an analog state via a D/A converter 23 by the function of the circuit 20.
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