The parallel loading of the flip-flop can be synchronous (i.e., occurs with the clock pulse) or asynchronous (independent of the clock pulse) depending on the design of the shift register.

• 触发器的并行加载可以是同步的（即在时钟脉冲到达时发生）或异步的（不依赖于时钟），这取决于移位寄存器的设计。