| 摘要 |
<p>The description relates to a method and a system to transfer digital signals between a digital signal processor or a DSP circuit (3) and peripheral circuits (1, 2) connected to it, the signals being transferred between the peripheral circuits and the DSP circuit relatively often compared to the operational speed of the DSP circuit. Then there is a difficulty in that other activities of the DSP circuit repeatedly must be interrupted in order to transmit and receive signals, which i.a. makes it difficult to write the program. Acccording to the invention this problem is obviated in that the digital signals are transferred from a peripheral circuit (1) to the DSP circuit (3) via a switching matrix (5), whereby a certain number of signals are assembled in the switching matrix and transmitted as a respective cluster to the DSP circuit or from the DSP circuit, and correspondingly between the assembled signals there remains a longer continuous period for signal processing in the DSP circuit. A typical example is an A/D-converter, which transmits digital signals in time slots on a time-division bus to the DSP circuit. With the aid of the switching matrix several signal samples can be grouped into sequential time slots and correspondingly the intervals between the groups add to form a continuous processing period.</p> |
