TMS570LS2125 Datasheet, PDF (92/154 Pages) Texas Instruments – TMS570LSxxx5 16/32-Bit RISC Flash Microcontroller

TMS570LS2125
TMS570LS2135
TMS570LS3135
SPNS164 – 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
• CPU independent data transfer
• One master port - PortB (64 bits wide) that interfaces to the TMS570 Memory System.
• 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
• Hardware and Software DMA requests
• 8, 16, 32 or 64-bit transactions supported
• Multiple addressing modes for source/destination (fixed, increment, offset)
• Auto-initiation
• Power-management mode
• Memory Protection with four configurable memory regions
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System Information and Electrical Specifications
Copyright © 2011, Texas Instruments Incorporated
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