说明：  本文介绍了基于PCI总线，利用PCI总线拉制器S592。和DSP芯片TMS32OC31所设计的 DYB流洽成卡，并提供了55920、TMS320C31以及该卡的硬件说明.
(In this paper, based on the PCI bus, using PCI bus drawn browser S592. And DSP chip TMS32OC31 designed DYB flow into contact cards, and provides 55920, TMS320C31, as well as the hardware description of the card.)