TMS320TCI6484CMH Datasheet, PDF (230/242 Pages) Texas Instruments – Communications Infrastructure Digital Signal Processor

TMS320TCI6484
Communications Infrastructure Digital Signal Processor
SPRS438E—October 2009
8.22 Emulation Features and Capability
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8.22.1 Advanced Event Triggering (AET)
The TMS320TCI6484 device supports Advanced Event Triggering (AET). This capability can be used to debug
complex problems as well as understand performance characteristics of user applications. AET provides the
following capabilities:
• Hardware Program Breakpoints: specify addresses or address ranges that can generate events such as halting the
processor or triggering the trace capture.
• Data Watchpoints: specify data variable addresses, address ranges, or data values that can generate events such
as halting the processor or triggering the trace capture.
• Counters: count the occurrence of an event or cycles for performance monitoring.
• State Sequencing: allows combinations of hardware program breakpoints and data watchpoints to precisely
generate events for complex sequences.
For more information on AET, see the following documents:
• Using Advanced Event Triggering to Find and Fix Intermittent Real-Time Bugs application report (literature
number SPRA753)
• Using Advanced Event Triggering to Debug Real-Time Problems in High Speed Embedded Microprocessor Systems
application report (literature number SPRA387)
8.22.2 Trace
The TCI6484 device supports Trace. Trace is a debug technology that provides a detailed, historical account of
application code execution, timing, and data accesses. Trace collects, compresses, and exports debug information
for analysis. Trace works in real-time and does not impact the execution of the system.
For more information on board design guidelines for Trace Advanced Emulation, see the 60-Pin Emulation Header
Technical Reference (literature number SPRU655).
8.22.2.1 Trace Electrical Data/Timing
Table 8-115 Switching Characteristics for Trace ⁽¹⁾
(see Figure 8-51)
No.
1 t_w(DPnH)
1 t_w(DPnH)90%
2 t_w(DPnL)
2 t_w(DPnL)10%
3 t_sko(DPn)
Parameter
Pulse duration, DPn/EMUn high
Pulse duration, DPn/EMUn high detected at 90% Voh
Pulse duration, DPn/EMUn low
Pulse duration, DPn/EMUn low detected at 10% Voh
Output skew time, time delay difference between DPn/EMUn pins configured
as trace
End of Table 8-115
1 Over recommended operating conditions.
Min
Max Unit
2.4
ns
1.5
ns
2.4
ns
1.5
ns
-500
500 ps
230 C64x+ Peripheral Information and Electrical Specifications
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