TIMING UNIT ESTABLISHING TIME MEASURING METHOD AND MEASURING CIRCUIT

A timing unit establishing time measuring method and measuring circuit. The measuring method comprises: respectively determining a first period value, a second period value and a third period value of clock signals, wherein the first period value is a critical period of a clock signal when a timing unit (170) under test can correctly receive a data signal at a first test path, the second period value is a critical period of a clock signal when a delay detection module (140) can correctly receive a data signal at a second test path, and a third period value is a critical period of a clock signal when the delay detection module (140) can correctly receive a data signal at a third test path (S210); and determining an establishing time of the timing unit according to the first period value, the second period value, and the third period value (S220). Procédé de mesure de durée d'établissement d'unité de synchronisation et circuit de mesure. Le procédé de mesure consiste à : déterminer respectivement une première v