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