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ARM architecture family
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====Debug Access Port==== The Debug Access Port (DAP) is an implementation of an ARM Debug Interface.<ref> {{cite web |url=http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0314h/Babdadfc.html |title=CoreSight Components: About the Debug Access Port}} </ref> There are two different supported implementations, the Serial Wire [[JTAG]] Debug Port (SWJ-DP) and the Serial Wire Debug Port (SW-DP).<ref> {{cite web|url=http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dai0179b/ar01s01s03.html |title=The Cortex-M3: Debug Access Port (DAP)}} </ref> CMSIS-DAP is a standard interface that describes how various debugging software on a host PC can communicate over USB to firmware running on a hardware debugger, which in turn talks over SWD or JTAG to a CoreSight-enabled ARM Cortex CPU.<ref> {{cite web |first=Mike |last=Anderson |url=https://elinux.org/images/7/7f/Manderson5.pdf |title=Understanding ARM HW Debug Options}} </ref><ref> {{cite web |url=http://www.keil.com/support/man/docs/dapdebug/dapdebug_introduction.htm |title=CMSIS-DAP Debugger User's Guide}} </ref><ref> {{cite web |url=https://www.nimblemachines.com/cmsis-dap/ |title=CMSIS-DAP}} </ref>
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