A.13.3. CTI signals

Table A.27 shows the CTI signals.

Table A.27. CTI signals

NameI/OSource or destinationDescription
EDBGRQIExternal debugger or CoreSight interconnect

External debug request:

0

No external debug request.

1

External debug request.

The processor treats the EDBGRQ input as level sensitive. The EDBGRQ input must be asserted until the processor asserts DBGACK.

DBGACKODebug acknowledge signal.
DBGCPUDONEO

Indicates that all memory accesses issued by the Cortex-A9 processor result from operations that are performed by a debugger. active-HIGH.

DBGRESTARTI

Causes the processor to exit from Debug state. It must be held HIGH until DBGRESTARTED is deasserted.

0

Not enabled.

1

Enabled.

DBGRESTARTEDO

Used with DBGRESTART to move between Debug state and Normal state.

0

Not enabled.

1

Enabled.


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