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TMS320DM814x Datasheet(PDF) 20 Page - Texas Instruments |
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TMS320DM814x Datasheet(HTML) 20 Page - Texas Instruments |
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20 / 376 page  TMS320DM8148, TMS320DM8147 SPRS647E – MARCH 2011 – REVISED DECEMBER 2013 www.ti.com 2.6 System Memory Management Unit (MMU) All C674x accesses through its MDMA port will be directed through the system MMU module where they are remapped to physical system addresses. This protects the ARM Cortex-A8 memory regions from accidental corruption by C674x code and allows for direct allocation of buffers in user space without the need for translation between ARM and DSP applications. In addition, accesses by the EDMA TC0 and TC1 may optionally be routed through the system MMU. This allows EDMA Channels 0 and 1 to be used by the DSP to perform transfers using only the known virtual addresses of the associated buffers. The MMU_CFG register in the Control Module is used to enable/disable use of the system MMU by the EDMA TCs. For more details on the system MMU features, see the system MMU section of the Chip Level Resources chapter in the TMS320DM814x DaVinci Digital Media Processors Technical Reference Manual (Literature Number: SPRUGZ8). 20 Device Overview Copyright © 2011–2013, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TMS320DM8148 TMS320DM8147 |
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