Overview
The LC895925 provides the following signal processing functions for CD-R drives: CD-ROM decoding/encoding (complete with ECC processing for the former), subcode decoding/encoding, CD encoding, ATIP decoding, CLV servo, and SCSI interface registers.

Features
• CD-ROM decoding/encoding complete with error
   detection and error correction
• Subcode decoding/encoding complete with 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
• Support for PCA random EFM output during encoding
• Support for CD-ReWritable (CD-RW) Write Strategy
   signal output
• Access to buffer RAM from microcontroller via
   LC895925
• Built-in SCSI interface
• Speeds of 12× for decoding and 4× for encoding
   — Frequencies
      Decoding: 17.2872 MHz
      Encoding: 17.2872 MHz without Write Strategy
                       support
                       69.1488 MHz with Write Strategy
                       support
• Transfers speeds of 10 megabytes/s (synchronous) and 5
   megabytes/s (asynchronous) with 16 80-ns DRAMs *1
• Buffer RAM sizes between 1 and 32 megabits (using 16-
   bit 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
   Notes:
   1. Using a SCSI master clock of 20 MHz with speeds up to 8×.
   2. Using a SCSI master clock of 17.2872 MHz with speeds up to 4×.