Interleaving for memory cards

Details Interleaving for memory cards Interleaving for memory cards

1996-06-28

1998-06-02

Swann, Tod R.

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

711158, 711163, 711161, 711153, 711152, 711127, 711131, 711 5, G06F 1200

Patent

active

057617325

ABSTRACT:
A method and apparatus for interfacing a memory card with a system having a smaller bus width while maintaining its interchangeability with other systems having larger bus widths. The host accesses data stored in the memory card using an interleaving scheme, such as a two-way interleaving scheme. The host provides a first enable signal and a second enable signal. In response to the first enable signal, data is accessed from a first section of the addressed memory location, and in response to the second enable signal, data is accessed from a second section of the addressed memory location. The first section of the addressed memory location may store even data bytes and the second section of the addressed memory location may store odd data bytes. The host may only access one section of the selected memory location at a time when using the interleaving scheme.

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"Computer Architecture A Quantitive Approach", John L. Hennessy and David Patterson, 1990, pp. 429-431.
Miniature Card Specification, Release 1.0, Feb. 29, 1996, Intel Corporation (1995,96).
PC Standard, Release 2.0, Sep. 1991, Personal Computer Memory Card International Association.

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