Avance Logic ALS100, User Manual, Page: 13 / 48

ALS100/L/M User’s Guide 10070 1.0
Introduction 3
Hardware Features
• Single, mixed-signal, high performance VLSI sound ASIC
• Six software selectable DMA lines (0, 1, 3, 5, 6, 7)
• Seven software selectable interrupt lines (5, 7, 9, 10, 11, 12, 15)
• 8-bit ISA Plug and Play bus interface
• 8-bit or 16-bit CD-ROM interface
• 8-bit or 16-bit DMA interface with FIFO
• Game port
• MIDI port with input and output FIFO
• 8-bit or 16-bit monaural/stereo digital audio from 4 kHz to 48
kHz
• Full duplex for concurrent recording and playback
Built-in Functional Blocks
• ISA Plug and Play support logic and resource ROM
• High speed 16-bit digital to analog and analog to digital convert-
ers with filters
• Yamaha OPL3/4 FM/Wavetable Synthesizer address decode
• Digital to analog converter to support external FM/wavetable
synthesis
• Thirty-two level stereo audio mixer with six input sources (DAC,
synthesizer, monaural, microphone, line in, and CD audio)
• Built-in amplifier for the microphone input
• ADPCM decompression engine
• High speed 8-bit or 16-bit DMA interface with FIFO
• MPU-401 MIDI controller with FIFO
• CD-ROM controller