Figure 13-2 Block Diagram Of The Tpiu (Etm Version) - ARM Cortex-M3 Technical Reference Manual

Trace Port Interface Unit
13.1.2 TPIU components
13-4
A description of the main components of the TPIU is given in the following sections.
These include:
• Asynchronous FIFO
• Formatter on page 13-5
• Trace out on page 13-5
• ATB interface on page 13-5
• APB interface on page 13-5.
Asynchronous FIFO
The asynchronous FIFO enables trace data to be driven out at a speed that is not
dependent on the speed of the core clock.
Copyright © 2005, 2006 ARM Limited. All rights reserved.

Figure 13-2 Block diagram of the TPIU (ETM version)

ARM DDI 0337B