상세정보
등록 직접 메모리 접근 제어 방법 및 장치
- 출원번호
- 11932718 (2007.10.31)
- 공개번호
- 20080133793 (2008.06.05)
- 등록번호
- 8037214 (2011.10.11)
- 출원국
- 미국
- 협약과제
- 06MT2400, 가변대역 멀티코덱 및 제어기술 개발, 김도영
- 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