On Early X86-32 Processors > 자유게시판

A memory controller, often known as memory chip controller (MCC) or a memory controller unit (MCU), is a digital circuit that manages the circulation of data going to and from a computer's foremost memory. When a memory controller is built-in into another chip, akin to an integral a part of a microprocessor, it's normally called an integrated memory controller (IMC). Memory controllers include the logic essential to learn and write to dynamic random-entry memory (DRAM), and to supply the critical memory refresh and different capabilities. Studying and writing to DRAM is carried out by deciding on the row and column information addresses of the DRAM as the inputs to the multiplexer circuit, the place the demultiplexer on the DRAM makes use of the converted inputs to select the right memory location and return the data, which is then handed back by way of a multiplexer to consolidate the data so as to cut back the required bus width for the operation. Memory controllers' bus widths range from 8-bit in earlier programs, to 512-bit in additional sophisticated programs, the place they're usually applied as four 64-bit simultaneous memory controllers operating in parallel, although some function with two 64-bit memory controllers getting used to entry a 128-bit memory gadget.