DMA
The data is blindly transferred between the pre-programmed memory region, as described by the scatter/gather list.
First Party DMA
The mechanism is intended to allow the device to select the host memory buffer that is transfers data to or from.
The memory buffer selection mechanism is through the DMA Setup FIS.
IN the DMA Setup FIS, the Buffer ID field identifies the memory buffer.
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Explain There is not interrupt PIN for PCIe interrupt. When device wants to raise an interrupt, an interrupt message is sent to host via ... -
Configure Space Addressing One of the major improvements the PCI Local Bus had over other I/O architectures was its configuration mechanism... -
What is LMA and VMA Every loadable or allocatable output section has two addresses. The first is the VMA, or virtual memory address. This ...