direct memory access


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direct memory access

n
(Computer Science) a process in which data may be moved directly to or from the main memory of a computer system by operations not under the control of the central processing unit. Abbreviation: DMA
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[2] TMS320C6000 DSP Enhanced Direct Memory Access (EDMA) Controller Reference Guide.
Remote Direct Memory Access (RDMA) allows remote computers to directly read memory regions on local memory without interfering its CPU.
Integrated support for Direct Memory Access (DMA) allows peripherals to remain active, allowing developers to realize significant savings by turning off the Flash and the CPU - while the application is running.
The solution can be deployed with either local direct memory access or remote direct memory access middleware and supports data presentation in Japanese or Western book formats.
Voltaire switches provide 10 or 20 Gigabits/second InfiniBand bandwidth and data acceleration that takes advantage of Remote Direct Memory Access (RDMA) technology to reduce latency and latency standard deviation while increasing message throughput for automated trading environments.
New features include automatic generation of logic and code, such as analog and digital measurements with direct memory access using a configuration-based FPGA project wizard; high-level design using a statechart approach based on the Unified Modeling Language specification with the Statechart Module; new intellectual property for multichannel operations including PID control for more efficient FPGA gate usage; and simulation of FPGA functions on windows before compiling for FPGA targets to speed design.
Using the FPGA Project Wizard, designers can automate the generation of more complex, high-speed DMA (direct memory access) data-transfer code.
The CT-S2000 features high-speed DMA (Direct Memory Access) CPU, which provides speeds of up to 220mm/s, and built-in power supply.
Using the Direct Memory Access (DMA) controller to transfer the data, it is possible to transfer the data from the FPGA to the DSPs main memory without interrupting the DPSs core.
With remote direct memory access (RDMA), an addition to the IP standard, computers can directly place information onto another computer's memory with minimal demand on the memory bus and on the CPU, replacing TCP/IP copy requirements that add latency and consume CPU and memory resources.
Other topics in the book include: Memory management including file buffering, process swapping, and Direct Memory Access (DMA)--The Virtual Filesystem and the Second Extended Filesystem--Process creation and scheduling--Signals, interrupts, and the essential interfaces to device drivers--Timing--Synchronization in the kernel-Interprocess Communication (IPC)--Program execution The second edition of 'Understanding the Linux Kemel' will acquaint readers with all the inner workings of Linux, but is more than just an academic exercise.
These display IC technologies consist of highly integrated chips designed to support the i.250 baseband processor's Direct Memory Access Control (DMAC) protocol and open the display window for all mobile communication devices.

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