知搜-全球专利检索

  1. 登录
  2. 注册
发明授权
CN104346310B 一种高性能I2C从机数据交换电路及方法 有权

一种高性能I2C从机数据交换电路及方法
摘要：
本发明公开了一种高性能I2C从机数据交换电路及方法，电路包括I2C接收器、I2C发送器、有限状态机、协议层模块、控制状态寄存器、从机资源管理器和总线接口单元，总线接口单元连接系统总线，I2C接收器、I2C发送器分别通过I2C总线SCL/SDA与外部总机通信，I2C接收器、I2C发送器分别与FSM相互通信，FSM、协议层模块和总线主机模块通信，控制状态寄存器分别与FSM、协议层模块、总线从机模块相互通信，协议层模块与从机资源管理器相互通信。本发明I2C从机设备支持不同的主机配置各自不同的传输属性信息，差异化传输属性管理，支持多个主机之间并发乱序地访问从机设备，显著提高传输效率，具有通用性。
摘要（英）：

The invention discloses a data exchange circuit and method of high-performance I2C slave equipment. The data exchange circuit comprises an I2C receiver, an I2C transmitter, a finite-state machine (FSM), a protocol layer module, a control status register, a slave resource manager and a bus interface unit, wherein the bus interface unit is connected with a system bus; the I2C receiver and the I2C transmitter communicate with an external switchboard through I2C buses SCL/SDA respectively and communicate with the FSM respectively; the FSM and the protocol layer module communicate with a bus host module; the control status register communicates with the FSM, the protocol layer module and a bus slave module; the protocol layer module communicates with the slave resource manager. The I2C slave equipment supports different hosts to configure different transmission attribute information, perform differentiated transmission attribute management and concurrently and disorderly visit the slave equipment, the transmission efficiency is remarkably improved, and the commonality is achieved.

公开/授权文献
0/0