公开(公告)号：EP3110077A4

公开(公告)日：2017-03-29

申请号：EP15880840

申请日：2015-05-20

申请人： CRRC QINGDAO SIFANG ROLLING STOCK RES INST CO LTD

发明人： ZHANG YAWEI ,  ZHU MENGXIANG ,  QIN JIAOMEI ,  WANG SHUANG

IPC分类号： H04L12/40

CPC分类号： H04L12/40169 ,  H04L12/40 ,  H04L2012/40293

摘要： The present application relates to the technical field of field bus communication, and in particular to a protocol converter between a CPCI bus and an ISA bus and a conversion method thereof, which are suitable for communication between railway vehicle CPUs and vehicle bus MVB devices. The protocol converter comprises a CPCI local bus interface extension timing module, an ISA bus interface timing module, a CPCI bus matching ISA bus timing interface module, and a clock management module. The CPCI bus realizes communication with the ISA bus by the protocol converter. The traditional conversion bridge chips are replaced with the protocol converters without changing the traction controller structure and other devices in the system; the flexibility is high; and the functions are diverse. In addition, 8-bit data width or 16-bit data width of the ISA bus is supported, and the operation of an ISA bus device by a CPCI bus device in the form of IO or in the form of MEMORY is supported.

摘要翻译： 本申请涉及现场总线通信的技术领域，特别涉及CPCI总线和ISA总线之间的协议转换器及其转换方法，其适用于铁路车辆CPU和车辆总线MVB设备之间的通信。 协议转换器包括CPCI本地总线接口扩展定时模块，ISA总线接口定时模块，匹配ISA总线定时接口模块的CPCI总线和时钟管理模块。 CPCI总线通过协议转换器实现与ISA总线的通信。 传统的转换桥芯片由协议转换器替代，而不改变系统中的牵引力控制器结构和其他设备; 灵活性高; 功能多样。 此外，还支持ISA总线的8位数据宽度或16位数据宽度，并支持CPCI总线设备以IO形式或以MEMORY的形式对ISA总线设备的操作。