User guide

ARM DDI 0337I Copyright © 2005-2008, 2010 ARM Limited. All rights reserved. 11-1
ID072410 Non-Confidential
Chapter 11
Trace Port Interface Unit
This chapter describes the Cortex-M3 TPIU, the Trace Port Interface Unit specific to the
Cortex-M3 processor. It contains the following sections:
• About the Cortex-M3 TPIU on page 11-2
• TPIU functional description on page 11-3
• TPIU programmers model on page 11-5.