Table A.27 shows the CTI signals.
|Name||I/O||Source or destination||Description|
|EDBGRQ||I||External debugger or CoreSight interconnect|
External debug request:
The processor treats the EDBGRQ input as level sensitive. The EDBGRQ input must be asserted until the processor asserts DBGACK.
|DBGACK||O||Debug acknowledge signal.|
Indicates that all memory accesses issued by the Cortex-A9 processor result from operations that are performed by a debugger. active-HIGH.
Causes the processor to exit from Debug state. It must be held HIGH until DBGRESTARTED is deasserted.
Used with DBGRESTART to move between Debug state and Normal state.