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In various areas of application of digital filtering there is interest in a flexible integrated circuit for digital filtering which is easily programmable and operates fast enough for real time applications. The most important characteristics of such a circuit, such as: Structure, Types of instructions, Speed of operation in parallel processing Number of pins, etc., are discussed. In the case a number of these circuits are operating in parallel on a high order filter flow diagram, a simple way of finding the instruction sequences of these circuits is essential. For that purpose an interactive computer program is developed which generates these sequences for various possibilities of partitioning of the filter flow diagram.