for reassembling of the docsis mac frame the mac frame reassembling buffer read modules 151 and 152 receive the data from a read enable signal from the mac frame reassembling buffer modules 141 and 142 compare a length field value in a docsis mac header and a length of the mac frame reassembling buffer read a single complete docsis mac frame from the mac frame reassembling buffer and store the read docsis mac frame in a mac frame buffer the mac frame buffer modules 161 and 162 are buffers for storing the single complete docsis mac frame store the single complete docsis mac frame for each channel and are composed to subsequently and selectively process a single mac frame processing module from among a plurality of buffers fig2 is a flowchart illustrating mac frame reassembling buffer write operations according to an exemplary embodiment of the present invention as illustrated in fig2 the mac frame reassembling buffer write modules 121 and 122 first inspect a reset signal in operation s 201 initialize all used values when the reset signal is verified as being on in operation s 202 and verify that a used clock rises from 0 to 1 when the reset signal is verified as being off in operation s 203 when.