System for implementing peripheral device bus mastering in mobil

Details System for implementing peripheral device bus mastering in mobil System for implementing peripheral device bus mastering in mobil

1996-04-08

1998-06-30

Lee, Thomas C.

Boots, shoes, and leggings

395825, 395827, 395843, 395847, 3642405, 36424231, G06F 900, G06F 1300

Patent

active

057747431

ABSTRACT:
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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