| 摘要 |
PROBLEM TO BE SOLVED: To provide a product-sum computing unit for automatically generating an address of a register in which a plurality of calculation data are stored, outputting data in the midst of calculation processes and notifying an overflow, improving processing efficiency of the product-sum computing unit, and simplifying a recursive filter. SOLUTION: The product-sum computing unit is provided with a coefficient register 100, a data register 110, a multiplier 130, an adder 140, and a data bus 120 for performing data transfer to/from an external device. The product-sum computing unit is further provided with a data collectively automatically storing means 180 for automatically generating a data storage address only by inputting an address showing the data register 110 only once at the beginning from an external without individually designating all the addresses of the data register 110 from the external, and storing a series of data. Also, recursive product-sum calculations are performed by automatically storing intermediate result data in the midst of the product-sum calculation processes in the data register 110. COPYRIGHT: (C)2006,JPO&NCIPI
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