memory-mapped device

memory-mapped device
устройство с отображением портов [ввода-вывода] на ОЗУ
например, большинство графических систем позволяет ЦП напрямую адресовать видеопамять (video memory) или буфер кадров (frame buffer), хранящие выводимое на экран изображение, что существенно ускоряет вывод
см. тж. memory-mapped I/O

Англо-русский толковый словарь терминов и сокращений по ВТ, Интернету и программированию. . 1998-2007.

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Смотреть что такое "memory-mapped device" в других словарях:

  • Memory-mapped I/O — For more generic meanings of input/output port, see Computer port (hardware). MMIO redirects here. For the airport serving Saltillo, Mexico, assigned the ICAO code MMIO, see Plan de Guadalupe International Airport. Memory mapped I/O (MMIO) and… …   Wikipedia

  • Memory-mapped file — A memory mapped file is a segment of virtual memory which has been assigned a direct byte for byte correlation with some portion of a file or file like resource. This resource is typically a file that is physically present on disk, but can also… …   Wikipedia

  • Memory barrier — Memory barrier, also known as membar or memory fence or fence instruction, is a type of barrier and a class of instruction which causes a central processing unit (CPU) or compiler to enforce an ordering constraint on memory operations issued… …   Wikipedia

  • Device driver synthesis and verification — The device driver is a program which allows the software or higher level computer programs to interact with a hardware device. These software components act as a link between the devices and the operating systems, communicating with each of these …   Wikipedia

  • Memory mapping — In computing, memory mapping may refer to: Memory mapped file, also known as mmap() Memory mapped I/O, an alternative to port I/O; a communication between CPU and peripheral device using the same instructions, and same bus, as between CPU and… …   Wikipedia

  • Conventional memory — Memory areas of the IBM PC family. In DOS memory management, conventional memory, also called base memory, is the first 640 kilobytes (640 × 1024 bytes) of the memory on IBM PC or compatible systems. It is the read write memory usable by the… …   Wikipedia

  • Memory management unit — This 68451 MMU could be used with the Motorola 68010 A memory management unit (MMU), sometimes called paged memory management unit (PMMU), is a computer hardware component responsible for handling accesses to memory requested by the CPU. Its… …   Wikipedia

  • Memory address — A digital computer s memory, more specifically main memory, consists of many memory locations, each having a memory address, a number, analogous to a street address, at which computer programs store (except when the address is in mask ROM) and… …   Wikipedia

  • Flash memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube Non volatile …   Wikipedia

  • Duff's device — In computer science, Duff s device is an optimized implementation of a serial copy that uses a technique widely applied in assembly language for loop unwinding. Its discovery is credited to Tom Duff in November of 1983, who at the time was… …   Wikipedia

  • Upper Memory Area — The Upper Memory Area (UMA) is a design feature of IBM PC compatible x86 computers that was responsible for the 640 KB barrier.Reserved memory spaceIBM reserved the uppermost region of the PC memory map for ROM, RAM on peripherals and memory… …   Wikipedia


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