Signal processing circuit

摘要

Provided is a signal processing circuit occupying a small circuit area. A common arithmetic operation element is shared between a plurality of arithmetic operation sequence control units. An arbitration circuit selects, when the plurality of arithmetic operation sequence control units simultaneously generate requests for arithmetic operations to use the common arithmetic operation element, the predetermined sequence control unit based on priority information about the plurality of arithmetic operation sequence control units, causes the common arithmetic operation element to execute the arithmetic operation requested from the selected arithmetic operation sequence control unit, and returns the result of the arithmetic operation to the selected arithmetic operation sequence control unit.

主权项

1. A signal processing circuit, comprising:
a plurality of sequence control units each for performing sequence control based on data and an instruction; and an arithmetic operation processing unit for performing arithmetic operation processing based on a request for an arithmetic operation from any of the sequence control units, wherein the arithmetic operation processing unit includes: a common arithmetic operation element shared between or among_the sequence control units; and an arbitration circuit for, when the sequence control units simultaneously generate the arithmetic operation requests to use the common arithmetic operation element, selecting one of the sequence control units based on priority information about each of the sequence control units set prior to the simultaneous generation of the arithmetic operation requests, causing the common arithmetic operation element to execute the arithmetic operation requested from the selected sequence control unit, and returning a result of the arithmetic operation to the selected sequence control unit.