TMS320DM6441ZWT

Digital Signal Processor Dsp Overview

The TMS320DM6441 is a Digital Media System-on-Chip (DMSoC) from Texas Instruments' DaVinci family, integrating a C64x+ DSP core and an ARM926EJ-S RISC processor. The C64x+ DSP operates at up to 513 MHz at 1.2 V, delivering 4752 MIPS with 32 KB L1P cache and 80 KB L1D cache. The ARM926EJ-S runs at up to 256 MHz at 1.2 V, featuring 16 KB instruction cache and 8 KB data cache. It includes a Video Imaging Co-Processor (VICP), a Video Processing Subsystem (VPSS) with front-end capture and back-end encoding, USB 2.0 PHY, Ethernet MAC, and DDR2/Asynchronous memory interfaces in a 361-pin BGA package.

Digital Signal Processor Dsp Feature Summary

• Dual-core architecture combining a high-performance C64x+ DSP (up to 513 MHz) and an ARM926EJ-S RISC processor (up to 256 MHz).
• Integrated Video Imaging Co-Processor (VICP) and Video Processing Subsystem (VPSS) for hardware-accelerated video capture, processing, and display.
• Comprehensive peripheral set including USB 2.0 High-/Full-Speed Host/Client, 10/100 Mb/s Ethernet MAC, EDMA3 controller, and multiple serial interfaces (UART, SPI, I2C, ASP).
• Flexible memory architecture supporting DDR2 SDRAM, NOR/NAND Flash, and various flash card interfaces via Asynchronous EMIF.

Digital Signal Processor Dsp Applications

• Networked media encode and decode applications.
• Video imaging systems utilizing CCD or CMOS sensors.
• Portable media players requiring robust OS support and rich user interfaces.

Digital Signal Processor Dsp Procurement Notes

Verify the specific silicon revision required for the application, as the datasheet documents revisions 1.3 through 2.3 with distinct JTAG IDs and register offsets. Confirm power supply requirements, noting that clock frequencies are voltage-dependent (1.05 V vs 1.2 V). Ensure compatibility with the 361-pin ZWT BGA package dimensions and ball pitch specifications during PCB layout.

Digital Signal Processor Dsp Selection Notes

Select this component when both high-throughput digital signal processing and complex system control are needed within a single chip. The C64x+ core handles intensive video algorithms while the ARM core manages the operating system and peripherals. Consider the on-chip VICP if significant offloading of video codec tasks from the main DSP is desired to preserve MIPS for other functions.

Digital Signal Processor Dsp Part Context

The TMS320DM6441 belongs to the DaVinci technology family, designed to merge DSP numerical capabilities with RISC control efficiency. It serves as a complete solution for embedded digital media devices, distinguishing itself from pure DSPs by including a full ARM subsystem and extensive connectivity options like Ethernet and USB directly on the die.

Digital Signal Processor Dsp Replacement Considerations

Public confirmed substitute part numbers: None identified in verified source material.

Digital Signal Processor Dsp FAQ

What is the maximum clock frequency of the C64x+ DSP core?

The C64x+ DSP core can operate at a maximum clock rate of 513 MHz when powered at 1.2 V, or 405 MHz at 1.05 V.

How does the device handle video input and output?

It features a Video Processing Subsystem (VPSS) with a Video Processing Front-End (VPFE) for capturing raw image data from sensors and a Video Processing Back-End (VPBE) for generating analog video outputs via DACs or digital RGB/YCbCr signals.

What types of external memory are supported?

The DM6441 supports DDR2 SDRAM via a dedicated controller, and asynchronous memories including NOR Flash, NAND Flash, and various flash cards (MMC/SD, CompactFlash, SmartMedia) via the Asynchronous External Memory Interface (EMIFA).