Buffer Memory - Sony SMO-F551 Technical Manual

ECC Encoder/Decoder
This module encodes the Read-Solomon Long Distance Code and the CRC during the
write operations, and generates the syndrome during read operations.
generates the correction vendor and corrects the data during read operations.
Drive Interface
This module performs encoding and decoding of the RLL(1,7) and RLL(2, 7) data and
defects the ID data of the disk. The SYNC and RESYNC in the format are encoded
and detected in this module.

Buffer Memory

Buffer Memory is composed of 4 Mbytes of DRAM. User data is stored in reading or
writing data upon request.
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SMO-F551 Technical Guide and Specifications
Sony Corporation 1998
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