OVERVIEW
YMF754 (DS-1E) is a high performance audio controller for the PCI Bus. DS-1E consists of two separated functional blocks. One is the PCI Audio block and the other is the Legacy Audio block.
PCI Audio block provides 64-voice XG wavetable synthesizer with reverb and variation by using the software driver from YAMAHA. It also supports DirectSound hardware accelerator, Downloadable Sound (DLS) and DirectMusic accelerator.

FEATURES
• PCI 2.2 Compliant
• PC98 / PC99 specification Compliant
• PCI Bus Power Management rev. 1.0 Compliant (Support D0, D2 and D3 state)
• Supports clock run
• 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 I2S serial input for Zoomed Video Port
• Supports Consumer IEC958 Port (SPDIF In/Out)
• Supports direct recording function for SPDIF In
• Capability for using SPDIF In and Zoomed Video Port at the same time.
• Supports AC’97 Interface (AC-Link) Revision 2.1
• AC’97 Digital Docking
• Supports 4-Channel Speaker
• Hardware Volume Control
• EEPROM Interface
• Single Crystal operation (24.576MHz)
• Power supply: 3.3V for I/O (5V tolerant), 2.5V for Internal core logic
• 128-pin LQFP YMF754-V : 0.5mm pin pitch YMF754-R : 0.4mm pin pitch