YMF724F-V Yamaha, YMF724F-V Datasheet

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YMF724F-V

Manufacturer Part Number
YMF724F-V
Description
5.0/3.3V; DS1: high performance audio controller for the PCI bus
Manufacturer
Yamaha
Datasheets

Specifications of YMF724F-V

Case
TQFP
Dc
99+

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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.
• PCI 2.1 Compliant
• PC’97/PC’98 specification Compliant
• PCI Bus Power Management rev. 1.0 Compliant
• PCI Bus Master for PCI Audio
• Legacy Audio compatibility
(Support D0, D2 and D3 state)
OVERVIEW
FEATURES
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
FM Synthesizer
Hardware Sound Blaster Pro compatibility
MPU401 UART mode MIDI interface
Joystick
YMF724F
YAMAHA CORPORATION
DS-1
• Supports PC/PCI and Distributed DMA for legacy
• Supports Serialized IRQ
• Supports YAMAHA AC-3 device (YMF727 :
• 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
• 144-pin LQFP (YMF724F-V)
DMAC (8237) emulation
AC3F2) interface to enable AC-3 decode
Internal core logic
CATALOG No.:LSI-4MF724F20
September 21, 1998
YMF724F CATALOG
January 14, 1999

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