4.4.3. Functional description

The DAPBUS asynchronous bridge carries one transaction at a time across the clock domain boundary.

Aborting the current transaction

The SWJ-DP can abort a transaction in progress by driving dapaborts to HIGH. The bridge responds to the abort by driving dapreadys HIGH, ending the current transaction. However, the next transaction is stalled until the previously aborted transaction completes on the master interface.

Copyright © 2011-2013, 2015 ARM. All rights reserved.ARM DDI 0480G
Non-ConfidentialID042315