6.3.3. SWJ-DP reset

nTRST reset initializes the state of the SWJ-DP controller. nTRST reset is typically used by the RealView™ ICE module for hot-plug connection of a debugger to a system.

nTRST enables initialization of the SWJ-DP controller without affecting the normal operation of the processor.

The nTRST signal must be asserted with regard to the SWCLKTCK clock because the SWJ-DP performs no synchronization.

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