DMA transfer of data
US9019521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2014 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Jun 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/1817
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus comprising a first transfer unit configured to DMA-transfer input data to a holding unit, a second transfer unit configured to DMA-transfer the input data held by the holding unit to at least one unit, a notification unit configured to notify, in accordance with the DMA transferring of the first transfer unit, that the input data held by the holding unit is updated, and a transfer control unit configured to control so as to operate the second transfer unit in one of a first mode for transferring the input data from the holding unit to the at least one unit in response to the notification and a second mode for transferring the input data independently of the notification, wherein the transfer unit performs the switching to the second mode after the operation in the first mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.