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성과물

특허 검색
구분 출원국
출원년도 ~ 키워드

상세정보

등록 직접 메모리 접근 제어 방법 및 장치

직접 메모리 접근 제어 방법 및 장치
이미지 확대
발명자
황인기, 김도영, 정우석
출원번호
11932718 (2007.10.31)
공개번호
20080133793 (2008.06.05)
등록번호
8037214 (2011.10.11)
출원국
미국
협약과제
초록
Provided are a method and apparatus for controlling direct memory access. In the method, data to be transmitted are read and stored in response to a direct memory access controller (DMAC) operation request, and a portion of the data corresponding to an initial burst size is first transmitted to a data destination. After resetting a burst size according to a state of the data destination, another portion of the data corresponding to the reset burst size is second-transmitted to the data destination. If all the data are not transmitted through the first-transmission and the second-transmission, the second-transmission is repeated until all the data are transmitted. If all the data are transmitted through the first-transmission and the second-transmission, an interrupt signal is generated. Therefore, interrupt signals can be less generated, and thus the processor can access an external memory less frequently, thereby increasing system performance.
KSP 제안 키워드
Initial burst, Memory Access, System performance, direct memory access, external memory