Our TM BUS design is based on two sets of standards: IEEE STD 1149.1 and IEEE STD 1149.5. In section 2.1, we discuss in detail the architecture of our TM BUS. Fig. 2 shows its TIU (test interface unit or test controller).

• 简要介绍了测试维护总线TM- BUS(test and maintenance bus)及其应用 ,论述设计的 TM- BUS控制器的结构、实现及 TM-BUS控制管理机制。