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The Advanced eXtensible Interface (AXI) is an on-chip communication bus protocol and is part of the Advanced Microcontroller Bus Architecture specification (AMBA). [1] [2] AXI had been introduced in 2003 with the AMBA3 specification. In 2010, a new revision of AMBA, AMBA4, defined the AXI4, AXI4-Lite and AXI4-Stream protocols.
In its second version, AMBA 2 in 1999, Arm added AMBA High-performance Bus (AHB) that is a single clock-edge protocol. In 2003, Arm introduced the third generation, AMBA 3, including Advanced eXtensible Interface (AXI) to reach even higher performance interconnect and the Advanced Trace Bus (ATB) as part of the CoreSight on-chip debug and trace ...
Various models and protocols have been devised for maintaining coherence, such as MSI, MESI (aka Illinois), MOSI, MOESI, MERSI, MESIF, write-once, Synapse, Berkeley, Firefly and Dragon protocol. [2] In 2011, ARM Ltd proposed the AMBA 4 ACE [12] for handling coherency in SoCs.
Created Date: 8/30/2012 4:52:52 PM
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Download as PDF; Printable version; ... AMBA 3 AXI AMBA 4 ACE Lite AMBA AXI AMBA4 AXI Performance (enc) ... and internet protocol (IP) camera. ...
On Sunday, Jan. 5, the Rev. Paul Tellström announced his retirement from the pulpit at Altadena Community Church. The 69-year-old pastor is in the throes of Parkinson's disease.
On bus read request, the data is supplied by this cache instead of the memory. MERSI and MESIF are the same protocol with different terminology (F instead of R). Some time R is referred as "shared last " (S L). [9] [10] The state R = Recent is used not only in MERSI = R-MESI protocol but in several other protocols. This state can be used in ...