Microcomputer and microcomputer system
作者： Naoki Mitsuishi
DOI:
关键词: Computer hardware 、 Data transmission 、 Computer science 、 Direct memory access 、 Reading (computer) 、 Transfer (computing) 、 Microcomputer 、 Controller (computing) 、 External Bus Interface 、 Network packet
摘要: A microcomputer is provided with a data-transfer unit such as DMA (direct memory access) controller for controlling transfer of data through an external bus. Used in access to device controlled by the unit, bus-interface means includes buffer-register which can be specified either source location or destination transfer. Thus, internal-bus master CPU employed capable reading out information packet command from at high speed internal bus without using and, hence, carrying operation reflecting control condition command.
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