Overview
The TMS320DM6446AZWTA, part of the TMS320DM644x series, is a high-performance Digital Media System-on-Chip (DMSoC) developed by Texas Instruments. This device leverages TI's DaVinci™ technology to cater to the processing needs of next-generation embedded devices, particularly in networked media encode and decode applications. The DM6446 integrates a dual-core architecture, combining a TMS320C64x+™ DSP core and an ARM926EJ-S core, providing the benefits of both DSP and RISC technologies. This integration enables robust operating systems support, rich user interfaces, high processing performance, and long battery life, making it ideal for various embedded device applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Clock Rates (C64x+) | 513 MHz, 594 MHz, 810 MHz |
| Clock Rates (ARM926EJ-S) | 256.5 MHz, 297 MHz, 405 MHz |
| C64x+ MIPS | 4104, 4752, 6480 |
| On-Chip RAM | 16K-Byte Instruction RAM, 8K-Byte Data RAM |
| On-Chip ROM | 8K-Byte |
| Memory Architecture | L1P: 32K-Byte Program RAM/Cache, L1D: 80K-Byte Data RAM/Cache, L2: 64K-Byte Unified Mapped RAM/Cache |
| Package | 361-Pin Pb-Free BGA (ZWT Suffix), 0.8-mm Ball Pitch |
| Voltage | 1.2V Core, 1.8V and 3.3V I/O |
| Operating Temperature | -40°C to 105°C |
| GPIO Pins | Up to 71 General-Purpose I/O Pins |
Key Features
- Dual-Core Architecture: Combines a TMS320C64x+™ DSP core and an ARM926EJ-S core.
- Advanced VLIW DSP Core: Eight highly independent functional units, including six ALUs and two multipliers.
- Video Processing Subsystem (VPSS): Includes Video Processing Front-End (VPFE) and Video Processing Back-End (VPBE) with imaging co-processor (VICP).
- External Memory Interfaces: 32-Bit DDR2 SDRAM, asynchronous EMIF, NOR and NAND flash interfaces.
- Peripheral Set: Includes 10/100 Mb/s Ethernet MAC, I2C Bus, audio serial port, timers, watchdog timer, UARTs, PWM peripherals, and USB port.
- Power Management: Individual power-saving modes for ARM/DSP, flexible PLL clock generators.
- Debugging and Development: Embedded Trace Buffer (ETB11), on-chip ARM ROM bootloader, IEEE-1149.1 (JTAG) boundary-scan-compatible.
Applications
- Networked Media Devices: Suitable for devices requiring high-performance media encoding and decoding.
- Embedded Systems: Ideal for applications needing robust operating systems support and rich user interfaces.
- Video and Imaging Systems: Utilizes the VPSS for video capture, processing, and display.
- Audio and Multimedia Devices: Supports various audio interfaces and multimedia card interfaces.
- Industrial and Consumer Electronics: Can be used in a wide range of applications requiring high processing performance and low power consumption.
Q & A
- What is the TMS320DM6446AZWTA?
The TMS320DM6446AZWTA is a Digital Media System-on-Chip (DMSoC) developed by Texas Instruments, featuring a dual-core architecture with a TMS320C64x+™ DSP core and an ARM926EJ-S core.
- What are the clock rates of the C64x+ and ARM926EJ-S cores?
The C64x+ core operates at 513 MHz, 594 MHz, or 810 MHz, while the ARM926EJ-S core operates at 256.5 MHz, 297 MHz, or 405 MHz.
- What is the memory architecture of the TMS320DM6446?
The device features a two-level cache-based architecture with L1P, L1D, and L2 caches, along with on-chip RAM and ROM.
- What video processing capabilities does the TMS320DM6446 have?
The device includes a Video Processing Subsystem (VPSS) with Video Processing Front-End (VPFE) and Video Processing Back-End (VPBE) for video capture, processing, and display.
- What external memory interfaces are supported?
The device supports 32-Bit DDR2 SDRAM, asynchronous EMIF, NOR and NAND flash interfaces, and various multimedia card interfaces.
- Does the TMS320DM6446 support debugging and development tools?
Yes, it includes an Embedded Trace Buffer (ETB11), on-chip ARM ROM bootloader, and is IEEE-1149.1 (JTAG) boundary-scan-compatible.
- What are the power management features of the TMS320DM6446?
The device has individual power-saving modes for ARM/DSP and flexible PLL clock generators.
- What is the operating temperature range of the TMS320DM6446?
The operating temperature range is -40°C to 105°C.
- How many GPIO pins does the TMS320DM6446 have?
The device has up to 71 general-purpose I/O pins.
- What are some common applications of the TMS320DM6446?
Common applications include networked media devices, embedded systems, video and imaging systems, and audio and multimedia devices.
