OMAP-L137
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SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
•
Analysis Events
–
Program event detection
–
Data event detection
–
External trigger Detection
–
System event detection (i.e. cache miss)
–
Debug state machine state detection
•
Analysis Configuration
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Application access
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Debugger access
Table 6-113. ARM Debug Features
Category
Hardware Feature
Availability
Software breakpoint
Unlimited
Up to 14 HWBPs, including:
2 precise
(1)
HWBP inside ARM core which are shared
with watch points.
Basic Debug
Hardware breakpoint
8 imprecise
(1)
HWBPs from ETM’s address comparators,
which are shared with trace function, and can be used
as watch point too.
4 imprecise
(1)
HWBPs from ICECrusher.
Up to 6 watch points, including:
2 from ARM core which is shared with HWBPs and can
Watch point
be associated with a data.
8 from ETM’s address comparators, which are shared
with trace function, and HWBPs.
2 from ARM core which is shared with HWBPs.
Analysis
Watch point with Data
8 watch points from ETM can be associated with a data
comparator, and ETM has total 4 data comparators.
Counters/timers
3x32-bit (1 cycle ; 2 event)
External Event Trigger In
1
External Event Trigger Out
1
Internal Cross-Triggering Signals
One between ARM and DSP
Address range for trace
4
Data qualification for trace
2
System events for trace control
20
Trace Control
Counters/Timers for trace control
2x16-bit
State Machines/Sequencers
1x3-State State Machine
Context/Thread ID Comparator
1
Independent trigger control units
12
Capture depth PC
4k bytes ETB
On-chip Trace
Capture depth PC + Timing
4k bytes ETB
Capture
Application accessible
Y
(1)
Precise hardware breakpoints will halt the processor immediately prior to the execution of the selected instruction. Imprecise breakpoints
will halt the processor some number of cycles after the selected instruction depending on device conditions.
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