前端的可编程输入带宽可确保在所有分辨率清晰，低噪声的图像。
The front end's programmable input bandwidth ensures sharp, low noise images at all resolutions.
主板数字输入端口．仪表主板提供3个可编程输入端口，接收无源触点开关信号。
Motherboard digital input port: the instrument main board provides 3 programmable input port. receives the passive contact switch signal.
该系统实现了可编程输入输出（PIO）和超级直接存储器存取（UDMA）两种模式，实际运行效果良好，达到USB2 .0的高速率传输要求。
The system realizes two modes of PIO and UDMA. The running practice shows good effect and the high speed transmission of USB2.0 is achieved.
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