UNIVERSAL SPI (SERIAL PERIPHERAL INTERFACE)

A Universal SPI Interface is provided that is compatible, without the need for additional interface logic or software, with the SPI bus, existing DSA and other serial busses similar to (but not directly compatible with) the SPI bus, and parallel busses requiring compatibility with 74xx164-type signa...

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Bibliographic Details
Main Authors FRASER MICHAEL L, SPENCE NICHOLAS J, FENDER JASON R
Format Patent
LanguageEnglish
Published 12.03.2015
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A Universal SPI Interface is provided that is compatible, without the need for additional interface logic or software, with the SPI bus, existing DSA and other serial busses similar to (but not directly compatible with) the SPI bus, and parallel busses requiring compatibility with 74xx164-type signaling. In an additional aspect, a reduced-pincount Universal SPI Interface is provided that provides the same universal interface, but using fewer external output pins. The Universal SPI Interface includes multiple latches, buffers, and in an alternative embodiment, a multiplexer, configured together such that a Universal SPI interface is provided that can be readily reconfigured using only input signals to provide compatibility across multiple bus interfaces.
Bibliography:Application Number: US201314023781