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1.4
Run-Control signals
The run-control signals are now deprecated within Arm Development Studio, however, low-speed
control might still be possible through ConfigItems and the command-line utilities.
Debug Request (DBGRQ)
The Debug Request (DBGRQ) pin stops the target processor and puts it into its debug state.
Arm recommends that this signal is no longer used. You can leave the signal open on the target board.
If the signal is used, it must be pulled
Debug Acknowledge (DBGACK)
The Debug Acknowledge (DBGACK) pin notifies the debug unit that a debug request has been received
and that the target processor is now in its debug state.
Arm recommends that this signal is no longer used. You can leave the signal open on the target board.
If the signal is used, it must be pulled
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Warning
Warning
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on the target.
LOW
on the target.
LOW
Non-Confidential
1 Debug and trace interface
1.4 Run-Control signals
1-21
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