Overview
The TMS320DM6446BZWTA, produced by Texas Instruments, is a high-performance Digital Media System-on-Chip (DMSoC) that leverages TI’s DaVinci technology. This device is designed to meet the processing needs of next-generation embedded devices, particularly in networked media encode and decode applications. It features a dual-core architecture, combining a TMS320C64x+™ DSP core and an ARM926EJ-S core, providing the benefits of both DSP and Reduced Instruction Set Computer (RISC) technologies. This integration enables robust operating systems support, rich user interfaces, high processing performance, and long battery life.
Key Specifications
| Parameter | Description |
|---|---|
| C64x+ Clock Rates | 513 MHz, 594 MHz, 810 MHz |
| ARM926EJ-S Clock Rates | 256.5 MHz, 297 MHz, 405 MHz |
| C64x+ Instructions/Cycle | Eight 32-bit instructions |
| C64x+ MIPS | 4104, 4752, 6480 |
| L1P Program RAM/Cache | 32K-byte direct mapped cache |
| L1D Data RAM/Cache | 80K-byte 2-way set-associative cache |
| L2 Unified RAM/Cache | 64K-byte shared memory space |
| Memory Interfaces | DDR2 SDRAM (16/32-bit), Asynchronous EMIF (8/16-bit), NOR/NAND Flash, Compact Flash, MMC/SD/SDIO |
| Ethernet | 10/100 Mb/s Ethernet MAC (EMAC) with MDIO module |
| USB | USB 2.0 High-/Full-/Low-Speed Host and Client |
| Package | 361-pin Pb-Free BGA Package |
| Operating Voltage | 3.3-V and 1.8-V I/O, 1.2-V internal (513, 594), 1.3-V internal (810 only) |
Key Features
- Dual-Core Architecture: Combines a TMS320C64x+™ DSP core and an ARM926EJ-S core for high-performance processing and flexibility.
- Advanced VLIW DSP Core: Eight highly independent functional units, six ALUs, and two multipliers supporting multiple arithmetic operations per clock cycle.
- Memory Architecture: Includes L1 and L2 caches, DDR2 SDRAM memory controller, and various flash memory interfaces.
- Peripherals: 10/100 Mb/s Ethernet MAC, USB 2.0, audio serial port, I2C, SPI, UARTs, PWM, and general-purpose timers.
- Video Processing Subsystem (VPSS): Includes video processing front-end and back-end with imaging co-processor for video capture and display.
- Power Management: Individual power-saving modes for ARM and DSP cores, and flexible PLL clock generators.
- Debugging and Development: EmbeddedICE-RT™ logic for real-time debugging and JTAG boundary-scan compatibility.
Applications
- Digital Media: Suitable for devices requiring high-performance media processing such as video encoding and decoding.
- Networked Media: Ideal for networked media applications that need robust processing and communication capabilities.
- Video Imaging: Used in video imaging applications due to its advanced video processing subsystem.
- Embedded Systems: Applicable in various embedded systems requiring a balance of DSP and RISC processing.
Q & A
- What is the TMS320DM6446BZWTA?
The TMS320DM6446BZWTA is a high-performance Digital Media System-on-Chip (DMSoC) produced by Texas Instruments.
- What are the clock rates of the C64x+ DSP core?
The C64x+ DSP core operates at 513 MHz, 594 MHz, and 810 MHz.
- What is the role of the ARM926EJ-S core in the TMS320DM6446?
The ARM926EJ-S core is a 32-bit RISC processor that handles tasks such as operating system support and user interface management.
- What memory interfaces does the TMS320DM6446 support?
The device supports DDR2 SDRAM, asynchronous EMIF, NOR/NAND flash, Compact Flash, and MMC/SD/SDIO.
- Does the TMS320DM6446 have built-in video processing capabilities?
Yes, it includes a Video Processing Subsystem (VPSS) with video processing front-end and back-end peripherals.
- What are the power management features of the TMS320DM6446?
The device has individual power-saving modes for the ARM and DSP cores and flexible PLL clock generators.
- What debugging tools are available for the TMS320DM6446?
The device features EmbeddedICE-RT™ logic for real-time debugging and JTAG boundary-scan compatibility.
- What is the package type of the TMS320DM6446BZWTA?
The device is packaged in a 361-pin Pb-Free BGA package.
- What are the typical applications of the TMS320DM6446?
It is used in digital media, networked media, video imaging, and various embedded systems.
- Does the TMS320DM6446 support USB and Ethernet?
Yes, it supports USB 2.0 and 10/100 Mb/s Ethernet MAC with MDIO module.
