发明授权
- 专利标题: Memory access methods in a unified memory system
- 专利标题(中): 内存访问方法在统一的内存系统中
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申请号: US10983757申请日: 2004-11-09
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公开(公告)号: US07557809B2公开(公告)日: 2009-07-07
- 发明人: Yasuhiro Nakatsuka , Tetsuya Shimomura , Manabu Jyou , Yuichiro Morita , Takashi Hotta , Kazushige Yamagishi , Yutaka Okada
- 申请人: Yasuhiro Nakatsuka , Tetsuya Shimomura , Manabu Jyou , Yuichiro Morita , Takashi Hotta , Kazushige Yamagishi , Yutaka Okada
- 申请人地址: JP Tokyo
- 专利权人: Renesas Technology Corp.
- 当前专利权人: Renesas Technology Corp.
- 当前专利权人地址: JP Tokyo
- 代理机构: Mattingly & Malur, PC
- 优先权: JP2000-254986 20000825
- 主分类号: G06F13/14
- IPC分类号: G06F13/14 ; G09G5/39 ; G06F15/167
摘要:
The basic section of the multimedia data-processing system includes a CPU 1100, an image display unit 2100, a unified memory 1200, a system bus 1920, and devices 1300, 1400, and 1500 connected to the system bus. In this configuration, the CPU is formed on an LSI mounted on a single silicon wafer including instruction processing unit 1110 and display control unit 1140. Main storage area 1210 and display area 1220 are stored within the unified memory. Unified memory port 1910 for connecting the corresponding LSI and the unified memory is provided independently of the system bus intended to connect the LSI and the input/output devices. The unified memory port can be driven faster than system bus.
公开/授权文献
- US20050062749A1 Memory access methods in a unified memory system 公开/授权日:2005-03-24
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