CS4614 Datasheet | Cirrus Logic

Preliminary Product Bulletin Features s 255 MIPs SLIMD™ DSP Architecture s Direct X™ 5.0 3D Positional Audio s Fat Labs Approved 64-Voice Wavetable Synthesis with Effects s Net Meeting™ AEC Hardware Acceleration s High Quality Hardware Sample Rate Conversion (90+ d B Dynamic Range) s PC/PCI Legacy Support s DDMA Legacy Support s Crystal Clear Legacy Support (CCLS™) s PCI 2.1 pliant PCI Interface s 96 Stream DMA Interface with Hardware Scat- ter/Gather Support s PCI Power Management (D0 through D3 Hot), APM 1.2, and ACPI 1.0 Support s AC ‘97 2.0 Link Codec Interface s Direct Input™ Joystick Interface s MPU-401 MIDI Input/Output Interface s 3.3 V Power Supply (5 V tolerant I/O) Crystal Clear™ Sound Fusion™ PCI Audio Accelerator DESCRIPTION The CS4614 is a high performance pin-patible upgrade to the 100-pin CS4610/11 PCI audio accelerator. With the added legacy patibility modes, the CS4614 enables real mode DOS patible PCI-only audio subsystems. This device, bined with application and driver software, provides a plete system solution for hardware acceleration of Windows 95® Direct Sound®, Direct Sound3D®, Direct Input, and Wavetable Synthesis. WDM drivers provide support for both Windows 98 and Windows NT 5.0. The CS4614 is based on the Cirrus Logic Crystal Clear Stream Processor (SP) DSP core. The SP core is optimized for digital audio processing, and is powerful enough to handle plex signal processing tasks with ease. The SP core is supported by a bus mastering PCI interface and a built-in dedicated DMA engine with hardware scattergather support. These support functions ensure extremely efficient transfer of audio data streams to and from host-based memory buffers, providing a system solution with maximum performance and minimal host CPU loading. The all-digital CS4614 supports a variety of audio I/O configurations including direct connection to the Crystal Clear CS4297 AC ‘97 Codec. PC/PCI, DDMA, and Crystal Clear Legacy support provide PCI-only...