Overview

The LC895124 is the next-generation version of the LC89512 and is a CD-ROM decoder that includes a SCSI interface that supports the high-speed transfers (10 MB/s) of the FAST SCSI standard.

Features

• On-chip SCSI interface (with built-in SCAM selection register)

• Supports 8× playback - Using ×16 80-ns DRAMs

• Supports 4× playback - Using ×16 80-ns DRAMs or ×8 70-ns DRAMs

• Transfer rates: 10 MB/s (synchronous), 5 MB/s (asynchronous) using ×16 80-ns DRAMs*1

• Transfer rates: 8.467 MB/s (synchronous), 4.2336 MB/s (asynchronous) using ×8 70-ns DRAMs*2

• PSRAM can be used, providing 5 MB/s transfers in synchronous mode and 5 MB/s transfers in asynchronous mode .

• Supports the connection of up to 32 Mb of buffer RAM (using DRAM) (Up to 2 Mb when PSRAM is used)

• The user can freely set the CD main channel, C2 flag, and other areas in buffer RAM.

• Batch transfer function (transfers the CD main channel and C2 flag data in a single operation)

• Multi-block transfer function (automatically transfers multiple blocks in a single operation)

• High-speed transfer mode supports a 10-MB/s (synchronous) transfer rate using ×8 80-ns DRAMs

• Subcode ECC function

Functions

CD-ROM ECC function, subcode read function, SCSI interface