Sound-producing integrated circuit with virtual cache

G - Physics – 10 – H

Patent

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G10H 7/02 (2006.01)

Patent

CA 2305523

A digital sound-producing device having a digital signal processor (12) and data cache memory (16), and using an external sample memory (18) for storing digital audio sample data, includes a virt ual cache memory block (14) for dynamically allocating cache lines of the data cache memory. The virtual cache memory block is located in the address path between the digital signal processor andsample memory. Requests by the digital signal processor for access to the sample memory are in the form of a virtual address corresponding to a particular sample memory address.

Un dispositif produisant un son numérique qui comprend un processeur (12) de signal numérique et une mémoire cache (16) de données et qui utilise une mémoire externe (18) d'échantillons pour le stockage de données d'échantillons sonores numériques, comprend un bloc mémoire cache virtuel (14) servant à attribuer de manière dynamique des lignes de la mémoire cache de données. Le bloc de mémoire cache virtuel est situé dans le chemin d'adresse existant entre le processeur de signal numérique et la mémoire d'échantillons. Les demandes effectuées par le processeur de signal numérique en vue d'accéder à la mémoire d'échantillons se présentent sous forme d'une adresse virtuelle correspondant à une adresse spécifique de la mémoire d'échantillons.

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