Protocol converter to access AHB slave devices using the...

Details Protocol converter to access AHB slave devices using the... Protocol converter to access AHB slave devices using the...

2008-05-20

2008-05-20

Myers, Paul R. (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S066000, C710S071000, C710S307000

Reexamination Certificate

active

11263514

ABSTRACT:
A method for communicating between a first bus and a second bus is disclosed. The method generally includes the steps of (A) recognizing a read operation code in a read frame (i) received from the first bus and (ii) communicated with a first-bus protocol, (B) initiating a read transaction on the second bus using a second-bus protocol different than the first-bus protocol, wherein the initiating occurs earlier than a turn around time in the first-bus protocol that provides a plurality of bit times to respond to the read operation code and (C) transmitting read data received from the second bus on the first bus immediately after the turn around time.

REFERENCES:
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patent: 7185134 (2007-02-01), Kim et al.
patent: 2003/0140187 (2003-07-01), Moriwaki et al.
patent: 2003/0200374 (2003-10-01), Moriwaki et al.
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patent: 2005/0204084 (2005-09-01), Joe et al.
ARM Limited; “AMBA Specification”; ARM Limited; Revision 2.0; May 13, 1999; all pages.

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