Philips SAA7785 Manual do Utilizador Página 11

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ThunderBird Avenger
TM
PCI Audio SAA7785
Accelerator
Philips Semiconductors Preliminary Specification
1999 Nov 12 11
Architectural Overview
The SAA7785 ThunderBird Avenger
TM
is a multi-functional device that provides sound processing producing Sound-
Blaster-compatible emulation, DirectSound acceleration, 3D sound, spatialization, special effects, and 64-voice wavet-
able synthesis through the use of a Pine Digital Signal Processor (DSP) as the primary engine. Included within the
ThunderBird Q3DIII are interfaces for an AC97 codec, I
2
S I/O, MIDI port, standard analog joysticks, and an S/P DIF
Consumer Output port.
FIGURE 3 Block Diagram of a PC/AT System with the SAA7785 ThunderBird AvengerTM
System
Controller
Cache
PCI to ISA
Bridge
ThunderBird
TM
Audio
Controller
Graphics
Multi I/O
Pentium
TM
CPU
Memory
HOST BUS
ISA BUS PCI BUS
AC97 CODEC
JoystickMIDI Port
AGP
AC97 CODEC
2/4 Channels Additional
2 channels
(Primary)
I
2
S S/P DIF
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