and 2 others joined a min ago.
0
12kviews
Describe the importance of DMA controller. Explain method of interfacing 8257 DMA with 8086 microprocessor.
1 Answer
2
585views
written 7.1 years ago by
meghalikalyankar
• 2.3k
|
- DMA Transfer is a hardware controlled I/O Transfer technique. It is mainly used for high-speed data transfer between I/O and Memory where the speed of the peripheral is generally faster than the µP.
- In Program Controlled I/O, Status or interrupt driven I/O the speed of transfer is slow mainly because …
and 3 others joined a min ago.
ADD COMMENT
EDIT
Please log in to add an answer.