| 摘要 |
A signal processing device comprising a plurality of signal processing circuits (3, 4, 5) for executing a plurality of predetermined signal processing stages, respectively which are integrated on a monolithic semiconductor chip. The signal processing device further comprises a plurality of signal input terminals (301, 401, 501), connected with predetermined signal processing circuits among said plurality of signal processing circuits, for externally receiving input signals necessary for said plurality of signal processing stages, respectively, first signal output means (502) for outputting the final signal processing result obtained from the signal processing circuit (5) for performing the final signal processing stage among said plurality of signal processing circuits, and second signal output means (302, 402) for outputting the intermediate processing results obtained from the signal processing circuits (3, 4) other than said signal processing circuit for performing the final stage signal processing stage among said plurality of signal processing circuits, respectively. The signal processing device further comprises a plurality of selection means (6, 7, 8) each located on each of signal transfer paths for transferring the intermediate signal processing result outputted from the intermediate signal processing circuit, which is other than said signal processing circuit for performing the final signal processing stage among said plurality of signal processing circuits, to the signal processing circuit for performing the succeeding signal processing stage, said selection means being provided with supplemental signal input terminals (601, 701, 801) for externally receiving signals, respectively, each of said selection means serving to select either of the intermediate signal processing result and the signal received at each of the supplemental signal input terminals on the basis of a predetermined control signal so that a selected signal is supplied to the succeeding signal processing circuit. <IMAGE> |
