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Access to SATA HDD through a PCI card controller

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mohamadzn

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Hi
I have designed a new PCI card and I can transfer my data to RAM using DMA burst transfer but I have a bigger problem I need to write my data directly to HDD without using CPU time. On the other hand I need to send packets with the destination address of SATA to wirte to SATA interface. I want to know if North bridge on motherboard have a decoder to decode my packets and if it is true how can I do that
special thanks
 

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