Implementation of WDM/SCM multi channel monitoring function based on IEEE 1149.1

IEEE 1149.1 기반의 WDM/SCM 다채널 모니터링 기능 설계

In WDM/SCM-PON system more than thousand signals must be gathered to monitor for operation. We have implemented IEEE STD 1149.1 JTAG serial interface bus to gather and monitor analog signals. Required area is just $5{\times}5mm^2$. Gathering time per one signal is $1.75{\mu}$ second. Performance to gather is better than that defined in SFF-8472.