參數(shù)資料
型號: YMF724F
廠商: Yamaha Corporation
英文描述: high performance audio controller for the PCI Bus
中文描述: 高性能音頻控制器的PCI總線
文件頁數(shù): 1/50頁
文件大?。?/td> 268K
代理商: YMF724F
YMF724F
DS-1
YAMAHA CORPORATION
September 21, 1998
YMF724F CATALOG
CATALOG No.:LSI-4MF724F20
January 14, 1999
OVERVIEW
YMF724F (DS-1) is a high performance audio controller for the PCI Bus. DS-1 consists of two separated
functional blocks. One is the PCI Audio block and the other is the Legacy Audio block. PCI Audio block
allows Software Driver to handle maximum of 73 concurrent audio streams with the Bus Master DMA engine.
The PCI Audio Engine converts the sampling rate of each audio stream and the streams are mixed without
utilizing the CPU or causing system latency. By using the Software Driver from YAMAHA, PCI Audio
provides 64-voice XG wavetable synthesizer with Reverb and variation. It also supports DirectSound hardware
accelerator, Downloadable Sound (DLS) and DirectMusic accelerator.
Legacy Audio block supports FM Synthesizer, Sound Blaster Pro, MPU401 UART mode and Joystick
function in order to provide hardware compatibility for numerous PC games on real DOS without any software
driver. To achieve legacy DMAC compatibility on the PCI, DS-1 supports both PC/PCI and Distributed DMA
protocols. DS-1 also supports Serialized IRQ for legacy IRQ compatibility.
DS-1 supports the connection to AC’97 which provides high quality DAC, ADC and analog mixing.
In addition, it supports consumer IEC958, Audio Digital Interface (SPDIF) output, for high-quality, external
audio amplification.
FEATURES
PCI 2.1 Compliant
PC’97/PC’98 specification Compliant
PCI Bus Power Management rev. 1.0 Compliant
(Support D0, D2 and D3 state)
PCI Bus Master for PCI Audio
True Full Duplex Playback and Capture with
different Sampling Rate
Maximum 64-voice XG capital Wavetable
Synthesizer including GM compatibility
DirectSound Hardware Acceleration
DirectMusic Hardware Acceleration
Downloadable Sound (DLS) level-1
Legacy Audio compatibility
FM Synthesizer
Hardware Sound Blaster Pro compatibility
MPU401 UART mode MIDI interface
Joystick
Supports PC/PCI and Distributed DMA for legacy
DMAC (8237) emulation
Supports Serialized IRQ
Supports YAMAHA AC-3 device (YMF727 :
AC3F2) interface to enable AC-3 decode
Supports Consumer IEC958 Output (SPDIF) port
Supports AC’97 Interface (AC-Link)
Hardware Volume Control
EEPROM Interface
Single Crystal operation (24.576MHz)
5V Power supply for I/O. 3.3V Power supply for
Internal core logic
144-pin LQFP (YMF724F-V)
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