一种2.048Mb/s信号异步映射器的设计与实现

Implement and Design of 2.048Mb/s Signal Asynchronous Mapper

文章根据 SDH帧结构的特点，提出用固定码速调整和随机码速调整相结合的方法设计 2.048Mb/s支路信号异步映射电路。同时，数据缓冲存储器电路选用具有自指针功能的 FIFO电路，使得映射器电路结构简单、规模小、性能好。这种电路非常适合于大规模集成。

According to the characters of SDH structure,this paper presents an method of the circuit designing for 2.048Mb/s signal asynchronous mapping. The circuit structure is simple and it's size is small,because of using the fixed speed in negative justification and random speed in positive justification. The FIFO has the self－ pointer function. The performance of the Mapper can meet the ITU－ T recommendation. This circuit are useful in VLSI design.