Messages in this thread | | | Date | Thu, 05 Feb 2004 10:34:31 +0530 | From | romit dasgupta <> | Subject | [OT] DMA access from a non-bus master PCI device? |
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Hello, I have a PCI device that cannot be a PCI bus master (only a PCI target). For some reason it has a DMA controller. Since it can't be a bus master I can't initiate DMA transfers from this PCI device to system RAM. My question is, can we use the motherboard's DMA controller to perform this transfer? In some of the documents that I got in the web (http://www.pcguide.com/ref/mbsys/res/dma/func.htm), it is mentioned that the 8237 DMA controller that comes with standard motherboard chipsets, can only be used for DMA transfers over the ISA bus. Any comments are welcome.
Regards, -Romit
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