Direct Memory Access and Scatter Gather (v2.01a)(DS416) - 1.5 English - The DMA SG service is a continuation of the Xilinx family of IBM CoreConnect compatible LogiCORE products. It provides direct memory access (DMA) allowing for a bounded number of sequential data transfers to take place between regions in the address space, typically between memory and an I/O device, without processor management of individual transfers. This service also provides Scatter Gather (SG) functionality allowing a sequence of DMA operations to be prespecified by software and performed automatically without further processor intervention.