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There are four primary external signals associated with the debug interface:
IEBKPT, DEWPT, and EDBGRQ, with which the system asks the ARM9TDMI to enter debug state
DBGACK, which the ARM9TDMI uses to flag back to the system when it is in debug state.
| Copyright © 2000 ARM Limited. All rights reserved. | ARM DDI 0180A |
| Non-Confidential | |
| PDF version | |
| Home > Debug Support > Debug interface signals |