Because there is another Ethernet controller with the same bus and slot number (and a different function), this is a two-port controller.

因为还有另一个有着相同的总线和插槽编号(而功能不同)的以太网控制器，所以这是一个两口的控制器。

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It is composed of the microprocessor system and a serial port controller. The software is divided into main program and interruption program.

硬件结构由微处理器和串口控制器两部分组成，程序分为主程序和中断子程序两部分。

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This paper introduced the communication principle of USB2.0' protocol layer and the division, design and realization of the core part of USB2.0' host port controller.

本文简要介绍了USB2.0协议层的通信原理，描述了USB2.0主机端控制器核心部分的划分、设计及实现。

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This paper introduced the communication principle of USB2.0' protocol layer and the division, design and realization of the core part of USB2.0' host port controller.

本文简要介绍了USB2.0协议层的通信原理，描述了USB2.0主机端控制器核心部分的划分、设计及实现。

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