Features: n PCI 2.2 interface with bus mastering and burst modes n Only one 24.576MHz oscillator is needed n 4 synchronous I2S output data stream pairs within 1 flexible output DMA n Programmable channel routing mechanism among the 4 I2S output pairs n 4 synchronous I2S input data stream pairs spread in 3 input DMA’s (for Dolby pro-audio applications) n Optionally, a multi-channel AC-link can support 2 AC97 codecs n Programmable HW monitoring routing from I2S inputs to outputs n All I2S I/O pairs support 32-bit PCM data transfer and adjustable sample rate (up to 192KHz) n Integrated 192k/24-bit S/PDIF transmitter with 1 dedicated S/PDIF OUT DMA n Integrated 192k/24-bit S/PDIF receiver in recording DMA n S/PDIF IN supports digital loopback path for switching between optical and RCA connections n 48k/16-bit front panel DMA for AC97 codec n 2-wire master serial bus or 4-wire SPI (Serial Peripheral Interface) bus to control I2S codecs n 2-wire slave serial bus to communicate with microcontroller unit (MCU) n Interrupt pin to inform external MCU to retrieve the data from the system driver n One MPU-401 MIDI UART port n EEPROM control interface n 6 GPI phone jack detection pins n Advanced device-sensing technology indicates whether a speaker or a headphone is plugged in the jack n 9 direct-access GPIO pins n 3 bonding-option bits for 8 identification possibilites n 128-pin LQFP thin high-quality package
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