在硬件上介绍了RTL8019AS网卡芯片的硬件结构和内部存储器结构，以及其收发数据包的方法。
It also introduce the hardware structure, the memory structure and the method of receiving and delivering datum bundle of RTL8019AS chip.
分析了SDRAM芯片(MT 48lc16 M 16a2tg - 75it)的结构和工作原理，确定了内存sdram控制器的内部结构和工作流程，完成了内存sdram控制器的控制通路和数据通路设计。
Structure and work principle of SDRAM chip (MT48LC16M16A2TG-75IT) is analyzed. Internal architecture and workflow of SDRAM controller is confirmed. Furthermore, its control and data path is designed.
DMA控制器可以无需CPU介入而在内部存储器、外部存储器和芯片外设之间传送数据，其在DSP系统中有广泛的应用价值。
The DMA controller can transmit data among the interior memorizer, exterior memorizer and chip peripheral without the CPU intervention. It has comprehensive application value in the DSP system.
应用推荐