Implementing enhanced performance flash memory devices

摘要

A method and apparatus for implementing enhanced performance in a flash memory system in a computer system. A flash memory chip includes a function engine performing garbage collection and scrub operations using an internal bus for data movement. The system includes an on-flash chip memory buffer buffering garbage collection and scrub requests. Garbage collection and scrub operations are interleaved with mainline reads and writes.

主权项

1. A flash memory system for implementing enhanced performance comprising:
a flash memory device; a memory controller coupled to said flash memory device, said flash memory device comprising an internal bus for data movement; a memory buffer buffering garbage collection and scrub requests from a flash controller or a host controller; a function engine performing garbage collection and scrub operations using said internal bus for data movement, preserving input/output (I/O) bandwidth, and the garbage collection and scrub operations being interleaved with mainline reads and writes.