WO1995027243B1 - Emulation de carte audio au moyen d'un processeur de signaux numeriques - Google Patents

Emulation de carte audio au moyen d'un processeur de signaux numeriques

Info

Publication number
WO1995027243B1
WO1995027243B1 PCT/US1995/003847 US9503847W WO9527243B1 WO 1995027243 B1 WO1995027243 B1 WO 1995027243B1 US 9503847 W US9503847 W US 9503847W WO 9527243 B1 WO9527243 B1 WO 9527243B1
Authority
WO
WIPO (PCT)
Prior art keywords
memory
audio
output device
bus
communication area
Prior art date
Application number
PCT/US1995/003847
Other languages
English (en)
Other versions
WO1995027243A1 (fr
Filing date
Publication date
Priority claimed from US08/219,841 external-priority patent/US5598576A/en
Application filed filed Critical
Priority to AU21988/95A priority Critical patent/AU2198895A/en
Publication of WO1995027243A1 publication Critical patent/WO1995027243A1/fr
Publication of WO1995027243B1 publication Critical patent/WO1995027243B1/fr

Links

Abstract

Dispositif de sortie audio amélioré dans lequel un processeur de signaux numériques (DSP) (202), fonctionnant sous la commande d'un logiciel, émule une interface de commande commune. Cette interface de commande comprend un ensemble de registres qui sont mis à la disposition de l'unité centrale à des fins de lecture et d'écriture, même si aucun registre physique de ce type n'est disponible dans le dispositif. Le dispositif de sortie audio comprend un DSP (202) lui permettant d'interpréter et d'exécuter des instructions reçues à partir de l'unité centrale, une mémoire locale (205) permettant de stocker des données introduites dans le DSP (202) ou extraites de ce dernier, une interface de bus (BIF) (201) permettant d'accoupler le DSP (202) et la mémoire (205) à un bus système (105), et un élément d'accès direct à la mémoire (DMA) assurant le transfert de données entre la mémoire locale (205) et le bus système (105). La mémoire locale (205) présente une zone d'émulation lui permettant d'émuler un ensemble de registres, et une zone de communication destinée à transmettre des messages entre la mémoire locale (205) et le bus système (105).
PCT/US1995/003847 1994-03-30 1995-03-29 Emulation de carte audio au moyen d'un processeur de signaux numeriques WO1995027243A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21988/95A AU2198895A (en) 1994-03-30 1995-03-29 Sound board emulation using digital signal processor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/219,841 US5598576A (en) 1994-03-30 1994-03-30 Audio output device having digital signal processor for responding to commands issued by processor by emulating designated functions according to common command interface
US08/219,841 1994-03-30

Publications (2)

Publication Number Publication Date
WO1995027243A1 WO1995027243A1 (fr) 1995-10-12
WO1995027243B1 true WO1995027243B1 (fr) 1995-11-23

Family

ID=22820994

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/003847 WO1995027243A1 (fr) 1994-03-30 1995-03-29 Emulation de carte audio au moyen d'un processeur de signaux numeriques

Country Status (3)

Country Link
US (3) US5598576A (fr)
AU (1) AU2198895A (fr)
WO (1) WO1995027243A1 (fr)

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US9098332B1 (en) 2012-06-01 2015-08-04 Altera Corporation Specialized processing block with fixed- and floating-point structures
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Cited By (8)

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US9395953B2 (en) 2006-12-05 2016-07-19 Altera Corporation Large multiplier for programmable logic device
US8886695B1 (en) 2008-03-14 2014-11-11 Altera Corporation Normalization of floating point operations in a programmable integrated circuit device
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