TMS320C6678ACYPA

IC DSP FIX/FLOAT POINT 841FCBGA

1 TMS320C6678 Features and Description

1.1 Features

• Eight TMS320C66x™ DSP Core Subsystems (C66x CorePacs), Each with

– 1.0 GHz, 1.25 GHz, or 1.4 GHz C66x Fixed/Floating-Point CPU Core

› 44.8 GMAC/Core for Fixed Point @ 1.4 GHz

›22.4 GFLOP/Core for Floating Point @ 1.4 GHz

–Memory

› 32K Byte L1P Per Core

› 32K Byte L1D Per Core

› 512K Byte Local L2 Per Core

• Multicore Shared Memory Controller (MSMC)

– 4096KB MSM SRAM Memory Shared by Eight DSP C66x CorePacs

– Memory Protection Unit for Both MSM SRAM and DDR3_EMIF

• Multicore Navigator

– 8192 Multipurpose Hardware Queues with Queue Manager

– Packet-Based DMA for Zero-Overhead Transfers

• Network Coprocessor

– Packet Accelerator Enables Support for

› Transport Plane IPsec, GTP-U, SCTP, PDCP

› 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, WiMAX Air Interface, and SSL/TLS Security

› ECB, CBC, CTR, F8, A5/3, CCM, GCM, HMAC, CMAC, GMAC, AES, DES, 3DES, Kasumi, SNOW 3G, SHA-1, SHA-2 (256-bit Hash), MD5

›Up to 2.8 Gbps Encryption Speed

• Peripheral s

– Four Lanes of SRIO 2.1

› 1.24/2.5/3.125/5 GBaud Operation Supported Per Lane

› Supports Direct I/O, Message Passing

› Supports Four 1×, Two 2×, One 4×, and Two 1× + One 2× Link Configurations

– PCIe Gen2

› Single Port Supporting 1 or 2 Lanes

› Supports Up To 5 G Baud Per Lane

– HyperLink

› Supports Connections to Other KeyStone Architecture Devices Providing Resource Scalability

› Supports up to 50 Gbaud

– Gigabit Ethernet (GbE) Switch Subsystem

› Two SGMII Port s

› Supports 10/100/1000 Mbps Operation

– 64-Bit DDR3 Interface (DDR3-1600)

› 8G Byte Addressable Memory Space

– 16-Bit EMIF

– Two Telecom Serial Ports (TSIP)

› Supports 1024 DS0s Per TSIP

› Supports 2/4/8 Lanes at 32.768/16.384/8.192 Mbps Per Lane

– UART Interface

– I2C Interface

– 16 GPIO P

– SPI Interface

– Semaphore Module

– Sixteen 64-Bit Timers

– Three On-Chip P

• Commercial Temperature:

– 0°C to 85°C

• Extended Temperature:

–-40°C to 100°C

1.2 Applications

• Mission-Critical Systems

• High-Performance Computing Systems

• Communications

• Audio

• Video Infrastructure

• Imagi ng

• Analy ti cs

• Networ kin g

• Media Processing

• Industrial Automation

• Automation and Process Control

1.3 KeyStone Architecture

TI’s KeyStone Multicore Architecture provides a high-performance structure for integrating RISC and DSP cores with application-specific coprocessors and I/O. KeyStone is the first of its kind that provides adequate internal bandwidth for nonblocking access to all processing cores, peripherals, coprocessors, and I/O. This is achieved with four main hardware elements: Multicore Navigator, TeraNet, Multicore Shared Memory Controller, and HyperLink.

Multicore Navigator is an innovative packet-based manager that controls 8192 queues. When tasks are allocated to the queues, Multicore Navigator provides hardware-accelerated dispatch that directs tasks to the appropriate available hardware. The packet-based system on a chip (SoC) uses the two Tbps capacity of the TeraNet switched central resource to move packets. The Multicore Shared Memory Controller enables processing cores to access shared memory directly without drawing from TeraNet’s capacity, so packet movement cannot be blocked by memory access.

HyperLink provides a 50-Gbaud chip-level interconnect that allows SoCs to work in tandem. Its low-protocol overhead and high throughput make HyperLink an ideal interface for chip-to-chip interconnections. Working with Multicore Navigator, HyperLink dispatches tasks to tandem devices transparently and executes tasks as if they are running on local resources.

1.4 Device Description

The TMS320C6678 DSP is a highest-performance fixed/floating-point DSP that is based on TI's KeyStone multicore architecture. Incorporating the new and innovative C66x DSP core, this device can run at a core speed of up to 1.4 GHz. For developers of a broad range of applications, such as mission-critical systems, medical imaging, test and automation, and other applications requiring high performance, TI's TMS320C6678 DSP offers 11.2 GHz cumulative DSP and enables a platform that is power-efficient and easy to use. In addition, it is fully backward compatible with all existing C6000 family fixed and floating point DSPs.

TI's KeyStone architecture provides a programmable platform integrating various subsystems (C66x cores, memory subsystem, peripherals, and accelerators) and uses several innovative components and techniques to maximize intra-device and inter-device communication that allows the various DSP resources to operate efficiently and seamlessly. Central to this architecture are key components such as Multicore Navigator that allows for efficient data management between the various device components. The TeraNet is a non-blocking switch fabric enabling fast and contention-free internal data movement. The multicore shared memory controller allows access to shared and external memory directly without drawing from switch fabric capacity.

For fixed-point use, the C66x core has 4× the multiply accumulate (MAC) capability of C64x+ cores. In addition, the C66x core integrates floating point capability and the per-core raw computational performance in an industry-leading 44.8 GMACS/core and 22.4 GFLOPS/core (@1.4 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. The C66x core incorporates 90 new instructions (compared to the C64x+ core) 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 C6678 DSP integrates a large amount of on-chip memory. In addition to 32KB of L1 program and data cache, there is 512KB of dedicated memory per core that can be configured as mapped RAM or cache. The device also integrates 4096KB of Multicore Shared Memory that can be used as a shared L2 SRAM and/or shared L3 SRAM. All L2 memories incorporate error detection and error correction. For fast access to external memory, this device includes a 64-bit DDR-3 external memory interface (EMIF) running at 1600 MHz and has ECC DRAM support.

This family supports a plethora of high speed standard interfaces including RapidIO ver 2, PCI Express Gen2, and Gigabit Ethernet, as well as an integrated Ethernet switch. It also includes I2C, UART, Telecom Serial Interface Port (TSIP), and a 16-bit EMIF, along with general purpose CMOS IO. For high throughput, low latency communication between devices or with an FPGA, this device also sports a 50-Gbaud full-duplex interface called HyperLink. Adding to the network awareness of this device is a network co-processor that includes both packet and optional security acceleration. The packet accelerator can process up to 1.5 M packets/s and enables a single IP address to be used for the entire multicore C6678 device. It also provides L2 to L4 classification, along with checksum and QoS capabilities.

The C6678 device has a complete set of development tools, which includes: an enhanced C compiler, an assembly optimizer to simplify programming and scheduling, and a Windows® debugger interface for visibility into source code execution.

1.5 Functional Block Diagram

Figure 1-1 Functional Block Diagram