This paper introduces the design of a Synchronous Digital Hierarchy(SDH) Application Special Integrated Circuit(ASIC). The chip can demultiplex and muiltiplex up to 21 E1 signals form and to VC4 frame including codec of E1 line signal
digital desynchronizer
bit rate justification
TU12 pointer interpretation and generation
VC12 overhead termination and generation. The design of the chip not only accords with the ITU T recommendiations but also considers the system application. It has the characters of large scale
comprehensive functions and perfect performances.
关键词
同步数字系列专用集成电路上下分插复用终端复用自愈环
Keywords
SDH\ ASIC\ add and drop multiplexer\ terminal multiplexer\ self healing ring