Patent ID: 6701388
Filing Date: 2004-03-02
Classification: G06F

Abstract:
A digital signal processing unit, the digital signal processing unit comprising:a digital signal processor, the digital signal processing unit including: a core processing unit, the core processing unit processing signal groups applied thereto; a memory unit for storing signal groups; a serial port for exchanging signal groups with components external to the digital signal processing unit; a host port interface unit for receiving signal groups from an external microcontroller; a processor-to-processor interface unit for exchanging signal groups with an external data signal processing unit; and a direct memory access controller, the direct memory access controller controlling exchange of signal groups between the memory unit and the core processing unit, the direct memory access controller controlling the exchange of signal groups there through between the serial port, processor-to-processor interface unit and the host port processing unit and the memory unit, the direct memory access controller preventing a conflict with other signal transfers during the exchange of signal groups directly between the memory unit and the host port interface unit.