17.5.2.2 Hot Plugging

Hot-Plugging is the detection of a debugger probe when the external reset pin is not asserted. As shown in the following figure, Hot-Plugging is detected when at least 3 TCK/SWCLK pin rising edges are detected while RESET is not asserted. The hot-plugging detector is reset by a power-reset, a Brown-out Reset, or a an external reset. For security reasons, Hot-Plugging is not available when DAL.CPU0 equals to 0 or 3. Availability of the Hot-Plugging feature can be read from the Hot-Plugging Status bit of the Status B register (STATUSB.HPS).