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TMS570LS3137 数据表(PDF) 94 Page - Texas Instruments |
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TMS570LS3137 数据表(HTML) 94 Page - Texas Instruments |
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94 / 159 page  TMS570LS3137 SPNS162. – SEPTEMBER 2011 www.ti.com 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 94 System Information and Electrical Specifications Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback focus.ti.com: TMS570LS3137 |
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