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OVERVIEW Features Host Interface • Support ATAPI CD-ROM standard (SFF 8020) • Ultra DMA/33 support to achieve high throughput and data integrity • 32-byte Data FIFO to increase data throughput • Support Block-offset transfer and Linear Address transfer • Automatic ATAPI sequence handling • Automatic data transfer trigger and cache management DSP Interface • Supports CD-ROM, CD-ROM/XA, CD-I, Video-CD, Photo-CD, and CD-Plus formats • Supports various types of microprocessors and DSPs • Supports CD-ROM data descrambling • Supports both real-time correction and buffer-independent correction • One byte error correction per P-word and Q-word • Supports error detection of CD-ROM data • Automatic repeated error correction • Real time EDC checking logic • Q-channel extraction by hardware to support precise CD-DA data reading • Using pin BCK as subcode reference clock • Target Search and Status Flag Collection to minimize micro-processor overhead Microcontroller Interface • Direct Register Addressing (default) and Indirect Register Addressing support • Programmable ALE pin • Support 2 programmable general I/O ports and one programmable general input port DRAM Interface • Various DRAMs support (128K x 8, 256K x 8, 1M x 8, 64K x 16, 128K x 16, 256K x 16) • Supports ring-control-register to add flexibility of DRAM control • FPG/EDO DRAM support • Programmable DRAM timing • Programmable refresh timing Audio Playback Interface • Audio playback in CAV mode • Programmable audio data output pin • Programmable audio reference clock • Flexible left-right mute and volume control • IEC-958 Digital Audio output Miscellaneous • Flexible power management • Programmable internal system clock (up to 4 times fast of crystal input) • Clock output with various frequency • 100-pin QFP/LQFP package
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