Microprocessor technologies designer ARM on Monday unveiled specifications of cache coherency, a technology crucially needed for multi-core microprocessors as well as multi-socket servers. ARM announced the latest AMBA 4 interface and protocol specification featuring the AMBA 4 AXI Coherency Extensions (ACE).
Cache coherency is essential in multicore computing applications to efficiently maintain the consistency of data stored in local caches of a shared resource. The AMBA 4 ACE specification enables system level cache coherency across clusters of multicore processors, such as the ARM Cortex-A15 MPCore processors and ARM Mali-T604 graphics processors. This ensures optimum performance and power efficiency of complex heterogeneous SoC designs, and is designed to address next generation computing across mobile, home, networking and gaming applications.
ARM discusses technologies needed for heterogeneous multi-core CPUs
Posted on Wednesday, June 08 2011 @ 14:12 CEST by Thomas De Maesschalck