TMS320DM6467CCUTA6

The TMS320DM6467 (also referenced as DM6467) leverages TI's DaVinci?technology to meet the networked media encode and decode digital media processingneeds of next-generation embedded devices.

The DM6467 enables OEMs and ODMs to quickly bring to market devices featuringrobust operating systems support, rich user interfaces, high processingperformance, and long battery life through the maximum flexibility of a fullyintegrated mixed processor solution.

The dual-core architecture of the DM6467 provides benefits of both DSP andReduced Instruction Set Computer (RISC) technologies, incorporating ahigh-performance TMS320C64x+ DSP core and an ARM926EJ-S core.

The ARM926EJ-S is a 32-bit RISC processor core that performs 32-bit or 16-bitinstructions and processes 32-bit, 16-bit, or 8-bit data. The core usespipelining so that all parts of the processor and memory system can operatecontinuously.

The ARM core incorporates:

• A coprocessor 15 (CP15) and protection module
• Data and program Memory Management Units (MMUs) with table look-aside buffers.
• Separate 16K-byte instruction and 8K-byte data caches. Both are four-way associative with virtual index virtual tag (VIVT).

The TMS320C64x+? DSPs are the highest-performance fixed-point DSP generationin the TMS320C6000? DSP platform. It is based on an enhanced version of thesecond-generation high-performance, advanced very-long-instruction-word (VLIW)architecture developed by Texas Instruments (TI), making these DSP cores anexcellent choice for digital media applications. The C64x is a code-compatiblemember of the C6000? DSP platform. The TMS320C64x+ DSP is an enhancement of theC64x+ DSP with added functionality and an expanded instruction set.

Any reference to the C64x DSP or C64x CPU also applies, unless otherwisenoted, to the C64x+ DSP and C64x+ CPU, respectively.

With performance of up to 5832 million instructions per second (MIPS) at aclock rate of 729 MHz, the C64x+ core offers solutions to high-performance DSPprogramming challenges. The DSP core possesses the operational flexibility ofhigh-speed controllers and the numerical capability of array processors. TheC64x+ DSP core processor has 64 general-purpose registers of 32-bit word lengthand eight highly independent functional units-two multipliers for a 32-bitresult and six arithmetic logic units (ALUs). The eight functional units includeinstructions to accelerate the performance in video and imaging applications.The DSP core can produce four 16-bit multiply-accumulates (MACs) per cycle for atotal of 2376 million MACs per second (MMACS), or eight 8-bit MACs per cycle fora total of 4752 MMACS. For more details on the C64x+ DSP, see theTMS320C64x/C64x+ DSP CPU and Instruction Set Reference Guide(literaturenumber SPRU732).

The DM6467 also has application-specific hardware logic, on-chip memory, andadditional on-chip peripherals similar to the other C6000 DSP platform devices.The DM6467 core uses a two-level cache-based architecture. The Level 1 programcache (L1P) is a 256K-bit direct mapped cache and the Level 1 data cache (L1D)is a 640K-bit 2-way set-associative cache. The Level 2 memory/cache (L2)consists of an 512K-bit memory space that is shared between program and dataspace. L2 memory can be configured as mapped memory, cache, or combinations ofthe two.

The peripheral set includes: a configurable video port; a 10/100/1000 Mb/sEthernet MAC (EMAC) with a Management Data Input/Output (MDIO) module; a 4-bittransfer/4-bit receive VLYNQ interface; an inter-integrated circuit (I2C) Businterface; a multichannel audio serial port (McASP0) with 4 serializers; asecondary multichannel audio serial port (McASP1) with a single transmitserializer; 2 64-bit general-purpose timers each configurable as 2 independent32-bit timers; 1 64-bit watchdog timer; a configurable 32-bit host portinterface (HPI); up to 33-pins of general-purpose input/output (GPIO) withprogrammable interrupt/event generation modes, multiplexed with otherperipherals; 3 UART/IrDA/CIR interfaces with modem interface signals on UART0; 2pulse width modulator (PWM) peripherals; an ATA/ATAPI-6 interface; a 33-MHzperipheral component interface (PCI); and 2 external memory interfaces: anasynchronous external memory interface (EMIFA) for slower memories/peripherals,and a higher speed synchronous memory interface for DDR2.

The Ethernet Media Access Controller (EMAC) provides an efficient interfacebetween the DM6467 and the network. The DM6467 EMAC support both 10Base-T and100Base-TX, or 10 Mbits/second (Mbps) and 100 Mbps in either half- orfull-duplex mode; and 1000Base-TX (1 Gbps) in full-duplex mode with hardwareflow control and quality of service (QOS) support.

The Management Data Input/Output (MDIO) module continuously polls all 32 MDIOaddresses in order to enumerate all PHY devices in the system. Once a PHYcandidate has been selected by the ARM, the MDIO module transparently monitorsits link state by reading the PHY status register. Link change events are storedin the MDIO module and can optionally interrupt the ARM, allowing the ARM topoll the link status of the device without continuously performing costly MDIOaccesses.

The PCI, HPI, I2C, SPI, USB2.0, and VLYNQ ports allow the DM6467 to easilycontrol peripheral devices and/or communicate with host processors.

The DM6467 also includes a High-Definition Video/Imaging Co-processor(HDVICP) and Video Data Conversion Engine (VDCE) to offload many video andimaging processing tasks from the DSP core, making more DSP MIPS available forcommon video and imaging algorithms. For more information on the HDVICP enhancedcodecs, such as H.264 and MPEG4, please contact your nearest TI salesrepresentative.

The rich peripheral set provides the ability to control external peripheraldevices and communicate with external processors. For details on each of theperipherals, see the related sections later in this document and the associatedperipheral reference guides.

The DM6467 has a complete set of development tools for both the ARM and DSP.These include C compilers, a DSP assembly optimizer to simplify programming andscheduling, and a Windows? debugger interface for visibility into source code