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Difference between PL080 and PL330

Note: This was originally posted on 4th April 2012 at http://forums.arm.com

What is the difference between PL080 and PL330 as both are DMAC controller.

0 shreshtha sahu over 12 years ago

Note: This was originally posted on 4th April 2012 at http://forums.arm.com

I guess it has to do with SOC having microprocessor and Microcontroller. PL080 supports linked list, scatter gather etc will be used in SOC having uP with virtual memory whereas PL330 for simple microcontrollers.
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0 Neil Parris over 11 years ago

The main difference is that PL080 is AMBA 2 AHB, and PL330 (aka DMA-330) is AMBA 3 AXI and is much more programmable.
There is also a DMA-230 which is a very small AHB based DMA.
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