该多工器提供选择该扫描输入端或该数据输入端任一者作为该触发器输入端。
The multiplexer allows selection of either the scan input or the data input for presentation at the input of the flip-flop.
该扫描输入端与该触发器输入端之间的延迟大大地大于该数据输入端与该触发器输入端之间的信号传播延迟。
The delay between the scan input and the input of the flip-flop is substantially larger than the signal propagation delay between the data input and the input of the flip-flop.
输入端固定：接收的数据采用预先定义的格式。
Input is fixed: You receive data in a pre-determined format.
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