讨论了交叉交织ＲＳ码（ＣＩＲＣ）在旋转头数字磁记录器中的应用；介绍了时域ＲＳ码编译码的基本方法；给出了用ＦＰＧＡ和Ｌ６４７１Ｘ系列ＶＬＳＩ芯片对ＣＩＲＣ编译码器的硬件实现。实验表明，在记录器原始误码率为１０－３的情况下，加入ＣＩＲＣ纠错电路后，误码率小于１０－８；最后对误码原因进行了分析 The application of cross-interleaved RS code (CIRC) in rotary head digital magnetic recorder is discussed. The basic method of time-domain RS code coding and decoding is introduced. The hardware implementation of CIRC codec with FPGA and L6471X series VLSI chip is given . Experiments show that when the original bit error rate of the recorder is 10-3, the bit error rate is less than 10-8 after adding the CIRC error correction circuit. Finally, the reason of bit error is analyzed