Texas Instruments TMS320C6727, TMS320C6726, TMS320C6722, Dual Data Movement Accelerator dMAX

TMS320C6727, TMS320C6726, TMS320C6722

Floating-Point Digital Signal Processors

www.ti.com

SPRS268E –MAY 2005 –REVISED JANUARY 2007

4.9 Dual Data Movement Accelerator (dMAX)

4.9.1dMAX Device-Specific Information

The dMAX is a module designed to perform Data Movement Acceleration. The dMAX controller handles user-programmed data transfers between the internal data memory controller and the device peripherals on the C672x DSP. The dMAX allows movement of data to/from any addressable memory space, including internal memory, peripherals, and external memory. The dMAX controller in the C672x DSP has a different architecture from the previous EDMA controller in the C621x/C671x devices.

The dMAX controller includes features, such as capability to perform three-dimensional data transfers for advanced data sorting, capability to manage a section of the memory as a circular buffer/FIFO with delay tap based reading and writing data. The dMAX controller is capable of concurrently processing two transfer requests (provided that they are to/from different source/destinations).

Figure 4-4shows a block diagram of the dMAX controller.

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