| 摘要 |
The present invention relates to a high speed interleave and de-interleave method and apparatus in EOS. Said high speed interleave method comprises: reading in sequence from the external memory the VCG data that are from the Ethernet and are waiting to be interleaved; performing a member aggregation operation for each VCG data that has been read, and storing the member-aggregated VCG data into the member aggregation memory; performing an interleave on the VCG data from the member aggregation memory, and storing the interleaved VCG data into the interleave memory; and forming a SDH frame to be sent to the SDH after all the VCG data have been interleaved. The high speed de-interleave method comprises: performing a first-stage de-interleave for the SDH frame to separate the members of each VCG from each other and to store the separated members into the external memory; reading each of the members of the VCG in sequence from the external memory, performing a second-stage de-interleave to recover the VCG, and storing the recovered VCG data into a de-interleave memory so as to be sent to the Ethernet port.
|
