 | Словари, Словарь Dictionary |
| scan register (circuit design) A digital which can act either as a or as a serial and which is used to form a . The most common design is a multiplexed : ___ ____ normal in --| \ | | | |------|D Q|---- normal/scan output scan in ----|___/ mux | | | | | test mode ----+ +----|> | flip-flop | |____| clk ---------------+ The addition of a (mux) to each 's input allows operation in either normal or test mode. The output of each flip-flop goes to the normal functional logic as well as to the scan input of the next multiplexor in the scan path. The other common design is (LSSD). (1995-02-14) |
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