Apparatus for performing direct memory access with stride
US5291582A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1992 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Apr 27, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A direct memory access controller including apparatus for storing an address to which information is to be written or from which information is to be read, apparatus for storing data related to the address, apparatus for storing a value indicative of a width of a block of data to be transferred, apparatus for storing a value indicative of a total amount of information to be transferred, apparatus for storing a value indicating a number of addresses to be bypassed during a transfer, apparatus for incrementing the address while decrementing the value indicative of the width of the block and the value indicative of the total amount of information to be transferred until the width of the block has been crossed, and apparatus for changing the address by the value indicating a number of addresses to be bypassed during a transfer when the width of the block has been crossed, and apparatus for resetting the value indicative of a width of a block of data to be transferred to the original value when the width of the block has been crossed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.