Overview

The LC895926 is a CD-R IC that provides a wide range of functions including CD-ROM decoding (including ECC) and encoding, subcode encoding and decoding, CD encoding, ATIP decoding and CLV servo, and a SCSI interface that includes the register block.

Features

• ECC and EDC correction/addition for CD-ROM data (during decoding and encoding)

• Subcode decoding/encoding complete with error detection and error correction

• ATIP decoding and CRC checking for both encoding and decoding

• CLV servo control using ATIP data during encoding

• CIRC code insertion and EFM modulation during encoding

• Access to buffer RAM from microcontroller via LC895926

• Built-in SCSI interface

• Speeds of 24× for decoding and 12× for encoding

• Transfers speeds of 10 megabytes/s (synchronous) and 5 megabytes/s (asynchronous) with 16-bit 50-ns EDODRAMs

• Buffer RAM sizes between 1 and 32 megabits (using 16- bit EDO-DRAMs)

• User control over sizes of CD main channel, C2 flag, and subcode areas in buffer RAM

• Built-in batch transfer function for transferring entire CD main channel, C2 flag, or subcode area in a single operation.

• Built-in multiblock transfer function for transferring multiple blocks in a single operation.

• Automatic sequencing of encoding and decoding processing for a reduced processing load on the system microcontroller.