M-Bus远程抄表系统（symphonicmbus），是欧洲标准的2线的二总线，主要用于消耗测量仪器诸如热表和水表系列。
The PCA9519 is a 4-channel level translating I2C-bus/SMBus repeater that enables theprocessor
The PCA9547 is an octal bidirectional translating multiplexer controlled by the I2C-bus.The SCL/
The PCA9536 is an 8-pin CMOS device that provides 4 bits of General Purpose parallelInput/Output
资料->【B】电子技术->【B5】通信技术->【1】通信协议->【USB、OTG】->Universal Serial Bus Class Definitions for Communication Devices.pdf
Universal Serial Bus IrDA Bridge Device Definition This document specifies the behavior o
Universal Serial Bus Mass Storage Specification For Bootability 1 IntroductionWhen pe
资料->【B】电子技术->【B5】通信技术->【1】通信协议->【USB、OTG】->Universal Serial Bus Still Image Capture Device Definition.pdf