本文首先对蓝牙技术进行了概括性的介绍，重点介绍了主机控制器接口(HCI)协议，并对HCI流程进行了剖析。
In this paper, the Bluetooth technology is generally introduced, and the emphasis is put on the introduction to Host Controller Interface (HCI).
介绍基于UHCI的USB主机系统的硬件核心主机控制器接口规范，分析US B协议栈的硬件层实现。
The paper presents the interface specification of USB host controller based on UHCI, analyzes the implementation of hardware layer in USB stack.
介绍基于UHCI的USB主机系统的硬件核心主机控制器接口规范，分析US B协议栈的硬件层实现。
The paper presents the interface specification of USB host controller based on UHCI, analyzes the implementation of hardware layer in USB stack.
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