66AK2E05 Multicore DSP+ARM KeyStone II System-on-Chip (SoC) | TI.com


Multicore DSP+ARM KeyStone II System-on-Chip (SoC)


The 66AK2E0x is a high performance device based on TI’s KeyStone II Multicore SoC Architecture, incorporating the most performance-optimized Cortex-A15 processor single-core or quad-core CorePac and C66x DSP core, that can run at a core speed of up to 1.4 GHz. TI’s 66AK2E0x device enables a high performance, power-efficient and easy to use platform for developers of a broad range of applications such as enterprise grade networking end equipment, data center networking, avionics and defense, medical imaging, test and automation.

TI’s KeyStone II Architecture provides a programmable platform integrating various subsystems (for example, ARM CorePac (Cortex-A15 Processor Quad Core CorePac), C66x CorePac, network processing, and uses a queue-based communication system that allows the device resources to operate efficiently and seamlessly. This unique device architecture also includes a TeraNet switch that enables the wide mix of system elements, from programmable cores to high-speed IO, to each operate at maximum efficiency with no blocking or stalling.

TI’s C66x core launches a new era of DSP technology by combining fixed-point and floating point computational capability in the processor without sacrificing speed, size, or power consumption. The raw computational performance is an industry-leading 38.4 GMACS/core and 19.2 Gflops/core (@ 1.2 GHz operating frequency). It can execute 8 single precision floating point MAC operations per cycle and can perform double- and mixed-precision operations and is IEEE754 compliant. For fixed-point use, the C66x core has 4× the multiply accumulate (MAC) capability of C64×+ cores. The C66x CorePac incorporates 90 new instructions targeted for floating point and vector math oriented processing. These enhancements yield sizeable performance improvements in popular DSP kernels used in signal processing, mathematical, and image acquisition functions. The C66x core is backwards code compatible with TI'’s previous generation C6000 fixed and floating point DSP cores, ensuring software portability and shortened software development cycles for applications migrating to faster hardware.

The 66AK2E0x KeyStone II device integrates a large amount of on-chip memory. The Cortex-A15 processor cores each have 32KB of L1Data and 32KB of L1 Instruction cache. The up to four Cortex A15 cores in the ARM CorePac share a 4MB L2 Cache. In the DSP CorePac, in addition to 32KB of L1 program and 32KB of L1 data cache, there is 512KB of dedicated memory per core that can be configured as cache or as memory mapped RAM. The device also integrates 2MB of Multicore Shared Memory (MSMC) that can be used as a shared L3 SRAM. All L2 and MSMC memories incorporate error detection and error correction. For fast access to external memory, this device includes a 64-bit DDR-3 (72-bit with ECC support) external memory interface (EMIF) running at 1600 MTPS.

The device enables developers to use a variety of development and debugging tools that include GNU GCC, GDB, Open source Linux, Eclipse based debugging environment enabling kernel and user space debugging using a variety of Eclipse plug-ins including TI's industry leading IDE Code Composer Studio.


  • ARM® Cortex®-A15 MPCore™
    • Up to Four ARM Cortex-A15 Processor Cores at
      up to 1.4-GHz
    • 4MB L2 Cache Memory Shared by all Cortex-
      A15 Processor Cores
    • Full Implementation of ARMv7-A Architecture
      Instruction Set
    • 32KB L1 Instruction and Data Caches per Core
    • AMBA 4.0 AXI Coherency Extension (ACE)
      Master Port, Connected to MSMC (Multicore
      Shared Memory Controller) for Low Latency
      Access to SRAM and DDR3
  • One TMS320C66x DSP Core Subsystem (C66x
    CorePacs), Each With
    • 1.4 GHz C66x Fixed/Floating-Point DSP Core
      • 38.4 GMacs/Core for Fixed Point @ 1.2 GHz
      • 19.2 GFlops/Core for Floating Point @
        1.2 GHz
    • Memory
      • 32K Byte L1P Per CorePac
      • 32K Byte L1D Per CorePac
      • 512K Byte Local L2 Per CorePac
  • Multicore Shared Memory Controller (MSMC)
    • 2 MB SRAM Memory Shared by DSP CorePacs
      and ARM CorePac
    • Memory Protection Unit for Both SRAM and
  • Multicore Navigator
    • 8k Multi-Purpose Hardware Queues with Queue
    • One Packet-Based DMA Engine for Zero-
      Overhead Transfers
  • Network Coprocessor
    • Packet Accelerator Enables Support for
      • Transport Plane IPsec, GTP-U, SCTP,
      • L2 User Plane PDCP (RoHC, Air Ciphering)
      • 1 Gbps Wire Speed Throughput at 1.5
        MPackets Per Second
    • Security Accelerator Engine Enables Support for
      • IPSec, SRTP, 3GPP and WiMAX
        Air Interface, and SSL/TLS Security
      • ECB, CBC, CTR, F8, A5/3, CCM, GCM,
        Kasumi, SNOW 3G, SHA-1, SHA-2 (256-bit
        Hash), MD5
      • Up to 6.4 Gbps IPSec and 3 Gbps Air
    • Ethernet Subsystem
      • Eight SGMII Ports with Wire Rate Switching
      • IEEE1588 v2 (with Annex D/E/F) Support
      • 8 Gbps Total Ingress/Egress Ethernet BW
        from Core
      • Audio/Video Bridging (802.1Qav/D6.0)
      • QOS Capability
      • DSCP Priority Mapping
  • Peripherals
    • Two PCIe Gen2 Controllers with Support for
      • Two Lanes per Controller
      • Supports Up to 5 GBaud
    • One HyperLink
      • Supports Connections to Other KeyStone
        Architecture Devices Providing Resource
      • Supports Up to 50 GBaud
    • 10-Gigabit Ethernet (10-GbE) Switch Subsystem
      • Two SGMII/XFI Ports with Wire Rate
        Switching and MACSEC Support
      • IEEE1588 v2 (with Annex D/E/F) Support
    • One 72-Bit DDR3/DDR3L Interface with Speeds
      Up to 1600 MTPS in DDR3 Mode
    • EMIF16 Interface
    • Two USB 2.0/3.0 Controllers
    • USIM Interface
    • Two UART Interfaces
    • Three I2C Interfaces
    • 32 GPIO Pins
    • Three SPI Interfaces
    • One TSIP
      • Support 1024 DS0s
      • Support 2 Lanes at 32.768/16.3848.192
        Mbps Per Lane
  • System Resources
    • Three On-Chip PLLs
    • SmartReflex Automatic Voltage Scaling
    • Semaphore Module
    • Thirteen 64-Bit Timers
    • Five Enhanced Direct Memory Access (EDMA)
  • Commercial Case Temperature:
    • 0°C to 85°C
  • Extended Case Temperature:
    • –40°C to 100°C

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Parametrics Compare all products in C6000 DSP + Arm

Operating systems
On-chip L2 cache/RAM
Other on-chip memory
Serial I/O
Approx. price (US$)
Arm MHz (Max.)
Operating temperature range (C)
1 C66x    
4096 KB (ARM Cluster)
512 KB (per C66x DSP core)    
2048 KB    
2-Port 10Gb Switch
8-Port 1Gb Switch    
4 PCIe Gen2    
103.68 | 1ku    
4 ARM Cortex-A15    
0 to 85
-40 to 100