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What is the CAPTURE State?

During the CAPTURE state, data or instruction bits are loaded in parallel into data or instruction registers. The CAPTURE-DR (Data Register) loads data bits into the specified data register. CAPTURE-IR (Instruction Register) loads instruction bits into the Instruction Register.

Figure1 uses CAPTURE-DR and the boundary register as an example, shows how data is loaded from the input pins onto the input cells of the boundary register.



   Figure 1. 32 sample device and cell function in the CAPTURE state.