Memory-mapped I/O (MMIO) and port-mapped I/O (PMIO) are two complementary methods of performing input/output (I/O) between the central processing unit...

devices via I/O ports. In system architectures in which port I/O and memory are mapped into a suitable address space, an IOMMU can translate port I/O accesses...

has finished. A name used for asynchronous I/O in the Windows API is overlapped I/O. Input and output (I/O) operations on a computer can be extremely...

CPU/memory combo, for example by reading data from a disk drive, is considered I/O. The CPU and its supporting circuitry may provide memory-mapped I/O that...

memory access (DMA) operations, the CPU is uninvolved in the data transfer. The term can refer to either memory-mapped I/O (MMIO) or port-mapped I/O (PMIO)...

synchronization Channel I/O – High-performance input/output architecture DMA attack – Cyberattack exploiting high-speed expansion ports Memory-mapped I/O – Method of...

memory location or an input/output port in an address space. address space A mapping of logical addresses into physical memory or other memory-mapped...

of a number of different interfaces, such as a memory-mapped I/O peripheral, or through dedicated IO port instructions. Some GPIOs have 5 V tolerant inputs:...

peripherals, memory-mapped I/O, and obsoleted ROM BASIC. However, even with video RAM, the ROM BIOS, the Video BIOS, the Option ROMs, and I/O ports for peripherals...

SID and/or toggle SOD considerably faster than it is possible to toggle or sample a signal via any I/O or memory-mapped port, e.g. one of the port of an...

and remote files, and ensures a certain degree of coherency with memory-mapped views of files, since cache blocks are a special case of memory-mapped...

for mass-produced minicomputers, and memory-mapped I/O into the memory bus, so that the devices appeared to be memory locations. This was implemented in...

external program ROM and 64 to 256 bytes of internal (on-chip) RAM. The I/O is mapped into its own address space, separate from programs and data. Though the...

peripherals, these registers are followed by 160 “extended I/O” registers, only accessible as memory-mapped I/O (006016–00FF16). Actual SRAM starts after these register...

Bolosky; Richard Sanzi (June 1987). "A Unix Interface for Shared Memory and Memory Mapped Files Under Mach". Proceedings of the USENIX Summer Conference...

can map all of the devices in 64-bit space even if several have very large direct memory access (DMA) buffers. Booting while holding down 6 and 4 forces...

a system based on the Z80, all I/O is memory mapped, and the Z80 I/O instructions are only used to select memory banks. Bank 1 is "normal" mode, where...

Local Bus had over other I/O architectures was its configuration mechanism. In addition to the normal memory-mapped and I/O port spaces, each device function...

I/O" and are only accessible as memory-mapped I/O in the data address space. The data address space maps the 32 general-purpose registers, all the I/O...

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...

set for dedicated port-mapped I/O instructions, hardware implementations typically reserve part of the memory map for memory-mapped I/O. While it has not...

computer hardware outside the CPU — involves accessing its memory-mapped I/O address or port-mapped I/O address with a "load" or "store" instruction, issued...

needed] UHCI is configured with port-mapped I/O and memory-mapped I/O, and also requires memory-mapped I/O for status updates and for data buffers needed to...

accelerated memory-mapped I/O and DMA, while still using the familiar ISA bus to handle basic device duties such as interrupts and port-mapped I/O. Some high-end...

ISA bus has a 16-bit data bus and a 24-bit address bus that can be used for both 16-bit I/O port addresses and 24-bit memory addresses; both run at speeds...

the physical memory address space. The physical address space includes all of the main system memory, as well as memory-mapped buses and hardware devices...

lines Direct memory access (DMA) channels Port-mapped I/O Memory-mapped I/O Locks External devices External memory or objects, such as memory managed in...

and recover and reuse the memory that was no longer needed after startup. They might even remap areas of memory normally used for memory-mapped I/O....

cleanly. In the C64, the extra I/O pins of the processor are used to control the computer's memory map by bank switching, and for controlling three of the...

generator (also known as APU, featuring twenty two memory-mapped I/O registers), rudimentary DMA, and game controller polling. The Ricoh 2A03's sound hardware...