Method for data width conversion between a DMA controller and an

Details Method for data width conversion between a DMA controller and an Method for data width conversion between a DMA controller and an

1997-01-27

2000-11-14

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral adapting

326 30, 710 22, 710 53, 710127, 710130, G06F 1314

Patent

active

061483516

ABSTRACT:
A protocol controller connected between a SCSI device and a DMA controller. The SCSI device is connected to the protocol controller with a first bus and the DMA controller is connected to the protocol controller with a second bus having a width less than a width of the first bus. The protocol controller communicates with the SCSI device so that it transfers data having a width equivalent to the width of the second bus. Other data concurrently transferred by the SCSI device over the first data bus is ignored and not transferred to the DMA controller.

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