Overview
The LC895994 is a CD-R LSI that provides a wide range of functions including CD-ROM decoding (including ECC) and encoding, subcode Q encoding (CRC addition) and decoding, CD encoding, ATIP decoding and CLV servo, and an IDE interface that includes the register block.

FEATUREs
• ECC and EDC correction/addition for the CD-ROM
   data (during decoding and encoding)
• 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
   LC895994
• Built-in ATAPI (IDE) 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
• IDE Transfer rate: 13.3 MB/s when using 16-bit data
   path 80-ns DRAM chips
• Buffer RAM sizes between 1 and 32 megabits (using 16-
   bit DRAMs)
• User control over sizes of CD main channel, C2 flag
   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