Getting Started
2-10 Copyright © 2003-2010 ARM Limited. All rights reserved. ARM DUI 0224I
2.4 Connecting the Trace Port Analyzer
The ARM926EJ-S PXP Development Chip incorporates an ARM9 Embedded Trace
Macrocell (ETM9). This enables you to carry out real-time debugging by connecting
external trace equipment to the PB926EJ-S. The ETM9 monitors the program execution
and sends a compressed trace to the Trace Port Analyzer (TPA). The TPA buffers this
information and transmits it to the debugger where it is decompressed and used to
reconstruct the complete instruction flow. The trace size is medium (16-bit packets).
For MultiTrace, connect the TPA to the buffer board and plug the adaptor into the
PB926EJ-S as shown in Figure 2-4. MultiTrace requires a Multi-ICE JTAG unit.
Figure 2-4 Example of MultiTrace and JTAG connection
For RealView Trace, connect the Trace Port Analyzer (TPA) to the adaptor board and
plug the adaptor into the PB926EJ-S as shown in Figure 2-4. RealView Trace requires
a RealView ICE JTAG unit. The Ethernet and power supply cables connect to the
RealView ICE unit.