6000系列dsp DMA应用

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【文件名】:08526@52RD_Applications Using the TMS320C6000 Enhanced DMA.pdf
【格　式】:pdf
【大　小】:1403K
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                                                   Applications Using the TMS320C6000 Enhanced DMA
David Bell Digital Signal Processing Solutions
ABSTRACT
The enhanced direct memory access (EDMA) controller is the backbone of the two-level
cache architecture for the TMS320C6000 DSPs. The EDMA performs:
• cache servicing
• host-port servicing
• user-programmable data transfers
Through proper configuration, EDMA channels can be set up to operate continuously without
requiring CPU intervention or reprogramming. This allows the CPU to use its MIPS for data
processing, while the EDMA handles data management in the background. Either 16 or
64 channels, plus a Quick DMA (QDMA) register set, are programmable to perform data
transfers during CPU operation. EDMA channels and QDMA register sets are useful to
transfer data to/from any location in the DSP’s memory map. All transfers are synchronized
and each channel has a dedicated synchronization event. Note