DMA controller which optimizes transfer rate of data and method therefor

Year	Description
2000	Invention patented by Toshiaki Minami on November 20th, 2000. Abstract: A DMA controller is arranged to transfer data in units of one byte, one by one, by hand shaking when a transfer request signal is asserted by a low-speed I/O device, and is arranged to continuously transfer data of a predetermined number of transfer units when a burst request signal is asserted by a high-speed I/O device. The burst request signal may be replaced with a number-of-transfer-bytes information signal to continuously transfer data of a number of transfer bytes designated by the number-of-transfer-bytes information signal. Accordingly, a rate of data transfer between an I/O bus and a system bus can be optimized according to the kind of an I/O device connected to the I/O bus.
Source: selected by the editor from original sources.

Invention: DMA controller which optimizes transfer rate of data and method therefor