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the robustness of USB 2.0

 
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Robustness

  1. There are several attributes of the USB that contributes to its robustness

  2. Signal integrity using different drivers, receivers, and shielding

  3. CRC protection over control and data fields

  4. Detection of attach and detach and system-level configuration of resources

  5. Self-recovery in protocol, using timeouts for lost or corrupted packets

  6. Flow control for streaming data to ensure isochrony and hardware buffer management

  7. Data and control pipe constructs for ensuring independence from adverse interactions between functions


鲁棒性

  1. 以下属性增强了USB的鲁棒性

  2. 信号完整性:通过调用不同的驱动器、接收器、屏蔽器来确保信号的完整性

  3. 循环冗余检验:保护控制域和数据域

  4. 检测机制:检测附加和分离以及系统级的资源配置

  5. 自恢复协议:对丢失或错误的数据包启用超时检测

  6. 数据流的流量控制:确保同时性和硬件缓冲区管理

  7. 数据和控制管道结构:保证不受函数间互相不利的函数调用的影响


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