TMS320C6472ECTZ datasheet(261/269 Pages) TI1

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EMUClock

EMUTrace

TMS320C6472

www.ti.com

SPRS612G

– JUNE 2009 – REVISED JULY 2011

7.20 Emulation Features and Capability

7.20.1 Advanced Event Triggering (AET)

The C6472 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)

7.20.2 Trace

The C6472 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 Emulation and

Trace Headers Technical Reference Manual (literature number SPRU655).

Table 7-154. Timing Requirements for Trace

(see Figure 7-67)

500/625/700

NO.

UNIT

MIN

MAX

tw(EMUnH)

Pulse duration, EMUn high

3 - 0.6(1)

tw(EMUnH) 90%

Pulse duration, EMUn high detected at 90% VOH

1.5

tw(EMUnL)

Pulse duration, EMUn low

3 - 0.6(1)

tw(EMUnL) 10%

Pulse duration, EMUn low detected at 10% VOH

1.5

Output Skew time, time delay difference between EMU pins configured as

tsko(EMUn)

390 ps

1.8 ns

trace.

(1)

This parameter applies to the maximum trace export frequency operating in a 40/60 duty cycle.

Figure 7-67. Trace Timing

C64x+ Peripheral Information and Electrical Specifications

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