介绍 USB接口的特点 ,讨论了 89C5 2单片机无线 USB系统接口设计 ,介绍了将传统的 RS 2 32接口与 PC机通信的无线 /有线收发器改为采用 Philips公司 PDIUSBD12芯片的 USB接口的设计方案 ,用于实现远距离数据的无线传输。
USB 2.0 Specification Engineering Change Notice (ECN) #1: Mini-B connector Date: 10/20/2000 Reason for ECN: The USB 2.0 specified device-side connector – the B connector – is too large for use with a new generation of handheld and mobile devices, e.g., cell phones which would benefit from connectivity to the PC. This ECN incorporates a specification of a device-side mini connector (hereafter r