High level API to the engine that allows you to integrate the core with virtually any communication layer.

给引擎提供的高层API允许你将任意通信层集成到内核中。

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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。

youdao

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。

youdao