Mike Throckmorton

MCF5485 DMA DRD and LCD Documentation

Discussion created by Mike Throckmorton on Mar 21, 2007
Latest reply on Mar 30, 2007 by John Weil
The MCF548x Reference Manual mentions the data structures used in the Multi-channel DMA task descriptor table, namely "Data Routing Descriptors" and "Loop Control Descriptors" (section  It also mentions the Function Descriptor Table (section  Does anyone know where I can find complete documentation of these descriptors?  The Freescale provided DMA API contains several tasks (and an easy way to use them), but I have some special processing needs that I suspect the DMA engine could provide if I knew how to write my own descriptors.