| 摘要 |
<p>PURPOSE:To obtain various DSPs by attaining the loading of an optional program instead of a fixed program. CONSTITUTION:When a reset signal is inputted, a loading means 3 stores an instruction stored in an external storage and to be executed by a processing means 4 and a coefficient, etc., needed for execution of the instruction in a 1st RAM 1 and a 2nd RAM 2 respectively. Then the means 4 executes successively the instructions stored in the RAM 1 by means of a coefficient stored in the RAM 2. Thus the means 4 selects the RAM 1 to execute the instructions and therefore can load and execute the processing similar to a conventional DSP. In such a way, an optional execution is loaded from outside and carried out and therefore various DSPs are obtained without changing them into a mask.</p> |
