上面的讨论可通过硬件或软件实现。硬件实现需要建立-个多段的基于生成多项式的移位寄存器。循环冗余校验寄存器为了生成CRC，信息数据位被送进移位寄存器，一次–位。寄存器包含-一个预设值。当每个数据位都已经移进移位寄存器时，所有的位都向右移。LSB和数据位进行XOR运算，结果是:和位1原来的内容XOR(结果放在位0)，和位14原来的内容XOR(结果放在位13)，最后LSB被移进位15。这样重复执行，直到一个信息里的所有数据位都被处理完。CRC-16软件执行将在下一节中叙述。

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