发明授权
US5774743A System for implementing peripheral device bus mastering in mobile
computer via micro-controller for programming DMA controller,
generating and sending command signals, and receiving completion status
失效
用于通过微控制器在移动计算机中实现外围设备总线母带的系统，用于对DMA控制器进行编程，生成和发送命令信号，以及接收完成状态
- 专利标题： System for implementing peripheral device bus mastering in mobile computer via micro-controller for programming DMA controller, generating and sending command signals, and receiving completion status
- 专利标题（中）： 用于通过微控制器在移动计算机中实现外围设备总线母带的系统，用于对DMA控制器进行编程，生成和发送命令信号，以及接收完成状态
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申请号： US627987申请日： 1996-04-08
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公开(公告)号： US5774743A公开(公告)日： 1998-06-30
- 发明人: Franklyn H. Story , David R. Evoy , Peter Chambers , Lonnie Goff
- 申请人： Franklyn H. Story , David R. Evoy , Peter Chambers , Lonnie Goff
- 申请人地址： CA San Jose
- 专利权人： VLSI Technology, Inc.
- 当前专利权人： VLSI Technology, Inc.
- 当前专利权人地址： CA San Jose
- 主分类号： G06F13/12
- IPC分类号： G06F13/12 ; G06F9/00 ; G06F13/00
摘要：
The present invention is a system and method for implementing peripheral device bus mastering in a mobile computer system. The system uses the micro-controller of the mobile computer system to program a DMA controller. The DMA controller transfers data to and from the memory of the mobile computer system. A bus controller which is coupled to both the micro-controller and the DMA controller implements a memory data transfer request from the DMA controller and the micro-controller. A device controller, either a IDE hard disk controller or an ECP parallel port controller, is also coupled to the DMA controller and the micro-controller. The device controller receives and responds to the command signals from the micro-controller by transferring data to and from the DMA controller means and generating a completion signal when the transfer is complete.
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