Texas Instruments TMS320C6722 Manual do Utilizador descarregar pdf (Página 39)

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4.9 Dual Data Movement Accelerator (dMAX)

4.9.1 dMAX Device-Specific Information

TMS320C6727, TMS320C6726, TMS320C6722

Floating-Point Digital Signal Processors

SPRS268E – MAY 2005 – REVISED JANUARY 2007

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

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Texas Instruments TMS320C6722 Manual do Utilizador Página 39