Byte-enabled transfer for a data bus having fixed-byte data...

Details Byte-enabled transfer for a data bus having fixed-byte data... Byte-enabled transfer for a data bus having fixed-byte data...

2006-02-14

2006-02-14

Auve, Glenn A. (Department: 2112)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

C710S305000

Reexamination Certificate

active

07000045

ABSTRACT:
A data bus system transfers words and word portions on a data bus between master devices and slave devices. A size bus carries a size code in fixed-byte format that identifies a number of bytes being transferred in one or more words and/or word portions of a transaction. A byte-enable bus carries a byte-enable code that identifies valid bytes of a word. An interface decodes the byte-enable codes to size codes and, where an odd-byte byte-enable code is decoded, it decodes the odd-byte byte-enable code to a plurality of size codes.

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