The features of dual-port RAM IDT70V24S was introduced. The architecture of it and its driver in DVR(digital video record)products was deseribed. A driver for the application in embedded Linux was designed and developed.

• 利用双口RAM实现CPU与DSP之间的快速可靠通信,介绍了双口RAM IDT70V24S的特征,描述了它及其驱动程序在DVR(数字硬盘录像机)应用中的体系结构,设计并实现了该应用在嵌入式Linux系统下的驱动程序,为嵌入式Linux系统下的芯片驱动开发提供了很好的借鉴。