Tips And Tricks Using Hardware Breakpoints; Latency; Restrictions; Setting A Breakpoint On A Single Address - Analog Devices ADSP-21161N EZ-KIT Lite Manual

Using EZ-KIT Lite VisualDSP++ Interface
Table 2-10. Other Hardware Breakpoint Options (Cont'd)
Option
External Port
AND All Break-
points

Tips and Tricks Using Hardware Breakpoints

Be aware of the following tips and tricks when using hardware breakpoints
on ADSP-21161N processors.

Latency

For SHARC processors, hardware breakpoints do not assert until two (2)
instruction cycles after the actual break condition occurs

Restrictions

When using hardware breakpoints, do not place breaks at any address
where a ,
JUMP CALL
Do not place breaks in the last few instructions of a
delay slots of a delayed branch. For more information on these illegal loca-
tions, refer to your DSP's Hardware Reference.

Setting a Breakpoint on a Single Address

To set a breakpoint on a single address, set the Start Address equal to the
End Address.
2-18
Description
Enables external port breakpoints.External port (EP) breakpoints are trig-
gered by accesses made through the External Port. Use an EP breakpoint to
break on accesses made to any external device that may be tied to the EP,
such as external memory.
ANDs the interrupts to form the composite interrupt. Normally, the group
interrupts are ORed to create a composite interrupt.
, or instruction would be illegal.
IDLE
ADSP-21161N EZ-KIT Lite Evaluation System Manual
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DO LOOP