Apparatus and method for efficient transmission of unaligned...

Details Apparatus and method for efficient transmission of unaligned... Apparatus and method for efficient transmission of unaligned...

2007-11-13

2007-11-13

Auve, Glenn A. (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C711S201000, C712S204000

Reexamination Certificate

active

11138837

ABSTRACT:
An apparatus and method to transmit unaligned data over an interface bus while providing the appearance of aligned data transfers to the receiving processor. In a preferred embodiment, an alignment mechanism is provided in the bus interface of the receiving processor to align the data transfers transparent to the receiving processor. The alignment mechanism detects an unaligned transfer in the bus command queue and forms multiple commands of aligned data to send to the processor.

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“Method for Handling Unaligned Operands that Extend Across Memory Protection Boundaries in a Microprocessor”, IBM Technical Disclosure Bulletin, Apr. 1, 1994, Volume No. 37, Issue No. 4B, Page No. 597-598.

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