USB 2.0与OTG规范及开发指南详细说明了USB2.0与OTG规范的内容。介绍了USB的术语、缩写及产生背景；USBD规范的基本知识，包括USB总线的结构体系概述和USB数据流模型；USB接口的机械特性，主要说明其外壳和PCB开发的问题；USB总线的电气规范；USB总线的协议层和设备结构；USB 主机的硬件和软件开发；USB集线器规范及OTG规范。
USB 2.0与OTG规范及开发指南适于参与USB接口开发的电子工程师和机械工程师参考。
2021-10-26 17:42:19
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This document defines the DDR4 SDRAM specification, including features, functionalities, AC and DC characteristics, packages, and
ball/signal assignments. The purpose of this Standard is to define the minimum set of requirements for JEDEC compliant 2 Gb
through 16 Gb for x4, x8, and x16 DDR4 SDRAM devices. This standard was created based on the DDR3 standard (JESD79-3) and
some aspects of the DDR and DDR2 standards (JESD79, JESD79-2).
2021-10-26 13:55:15
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包含usb2.0和usb3.0的OTG协议文档，USB_OTG_1-3.pdf和USB_OTG_and_EH_3-0_release_1_1_10May2012.pdf
2021-10-21 19:55:19
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EJB3.0规范，包括EJB3核心规范.pdf、EJB3持久化规范(简体中文版).pdf、JMS1_1规范(简体中文版).pdf。希望对Java EE学习者有帮助。
2021-10-20 14:42:26
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Abstract The Hands-Free Profile (HFP) specification defines the minimum set of functions such that a Mobile Phone can be used in conjunction with a Hands-Free device (e.g. installed in the car), with a Bluetooth Link providing a wireless means for both remote control of the Mobile Phone by the Hands-Free device and voice connections between the Mobile Phone and the Hands-Free device.
2021-10-19 17:25:11
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