TMS570LS3137 datasheet(94/159 Pages) TI

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TMS570LS3137

SPNS162.

– SEPTEMBER 2011

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4.16 DMA Controller

The DMA controller is used to transfer data between two locations in the memory map in the background

of CPU operations. Typically, the DMA is used to:

•

Transfer blocks of data between external and internal data memories

•

Restructure portions of internal data memory

•

Continually service a peripheral

4.16.1 DMA Features

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CPU independent data transfer

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One master port - PortB (64 bits wide) that interfaces to the TMS570 Memory System.

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FIFO buffer(4 entries deep and each 64bit wide)

•

Channel control information is stored in RAM protected by parity

•

16 channels with individual enable

•

Channel chaining capability

•

32 peripheral DMA requests

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Hardware and Software DMA requests

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8, 16, 32 or 64-bit transactions supported

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Multiple addressing modes for source/destination (fixed, increment, offset)

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Auto-initiation

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Power-management mode

•

Memory Protection with four configurable memory regions

System Information and Electrical Specifications

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