Yamaha YMF724F

Yamaha YMF724F

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