Direct Memory Access


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direct memory access

[də¦rekt ¦mem·rē ′ak‚ses]
(computer science)
The use of special hardware for direct transfer of data to or from memory to minimize the interruptions caused by program-controlled data transfers. Abbreviated dma.

Direct Memory Access

(architecture)
(DMA) A facility of some architectures which allows a peripheral to read and write memory without intervention by the CPU. DMA is a limited form of bus mastering.
References in periodicals archive ?
Enhanced direct memory access (eDMA) controller for more flexible two-level loop control, further reducing core interruption and increasing performance
Mellanox iSER (iSCSI Extensions for Remote Direct Memory Access [RDMA]) networking solutions leverages VMware vSphere.
Drammer relies on DMA (direct memory access) buffers used by many hardware subsystems, including graphics, network, and sound.
The integration of E8 Storage's rack scale flash architecture with the Mellanox Remote Direct Memory Access (RDMA) network adapters enables converged networking with low latency and high throughput and bandwidth.
The access of the data can be through cache or through direct memory access (DMA) mechanism.
The contest applications use the STM32F429 with ARM Cortex-M4 core and 2-Dimensional Direct Memory Access (DMA2D) peripheral for managing and displaying graphics on TFT LCD screens.
Camera Link connectivity provides image transmission with no CPU loading, combining with direct memory access (DMA) to make the EOS-4000 suitable for high-resolution performance supporting industrial-automation and medical-imaginci environments.
Straightforward direct memory access (DMA) support for the TCM extends the use of this memory for shared buffers and streaming data.
* A wonderful DMA (direct memory access) engine moves data on and off the cell.
In addition to the integrated microcontroller, the USS2828 features a USB 2.0 high-speed PHY and device controller; a direct memory access controller; a memory controller; a programmable interrupt controller; read-only memory; random access memory; general purpose input-output technology; and two timers, the company claims.
The first, SCSI Remote Direct Memory Access (RDMA) Protocol (SRP) is the older of the two.

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