|
|
Scattergather
DMA transfer is an optional mode usually used to perform large data transfers. DMA
start address is a pointer to a chained list of page descriptors :
Each page descriptor defines the address and size of a data block plus a pointer to next descriptor
block. Descriptors are automatically fetched when needed and then data is read/written to
corresponding page. Chain is processed until transfer is finished or end of chain is reached, whichever
comes first.
E-mail: 
info@telesys.ru
