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The 66AK2Hxx platform combines the quad ARM Cortex-A15 processor with up to eight TMS320C66x high-performance DSPs using the KeyStone II architecture. The 66AK2H14/12/06 device provides up to 5.6 GHz of ARM and 9.6 GHz of DSP processing coupled with security, packet processing, and Ethernet switching at lower power than multichip solutions. The 66AK2H14/12/06 device is optimal for embedded infrastructure applications like cloud computing, media processing, high-performance computing, transcoding, security, gaming, analytics, and virtual desktop.
The C66x core combines fixed-point and floating-point computational capability in the processor without sacrificing speed, size, or power consumption. The raw computational performance is 38.4 GMACS/core and 19.2 Gflops/core (@ 1.2 GHz operating frequency). The C66x is also 100% backward compatible with software for C64x+ devices. The C66x core incorporates 90 new instructions targeted for floating point (FPi) and vector math oriented (VPi) processing.
The 66AK2H14/12/06 device has a complete set of development tools that includes: a C compiler, an assembly optimizer to simplify programming and scheduling, and a Windows® debugger interface for visibility into source code execution.
The KeyStone II architecture provides many major enhancements over the previous KeyStone I generation of devices. The KeyStone II architecture integrates a Cortex-A15 processor quad-core cluster. The external memory bandwidth has been doubled with the integration of dual DDR3 1600 EMIFs. MSMC internal memory bandwidth is quadrupled with MSMC architecture improvements such as cache coherency. MSMC also enbles memories to operate at the speed of the processor cores, which reduces latency and contention while providing high-bandwidth interconnections between processor cores and shared internal and external memory. Multicore Navigator supports twice the number of queues, descriptors, and packet DMA, four times the number of micro RISC engines, and a significant increase in the number of push/pops per second compared to the previous generation. The new peripherals that have been added include the USB 3.0 controller, and asynchronous EMIF controller for NAND/NOR memory access. The 3-port Gigabit Ethernet switch in KeyStone I has been replaced with a 5-port Gigabit Ethernet switch in KeyStone II. Time synchronization support has been enhanced to reduce software workload and support additional standards like IEEE 1588 Annex D/E and SyncE. The number of GPIOs and serial interface peripherals, like I2C and SPI, have been increased to enable more board-level control functionality.