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Embedded Trace Macrocell
15.3.3
FIFO functionality
15-8
Start/stop block
The start/stop block controls start/stop behavior by using the embedded ICE inputs to
the ETM. These inputs are controlled by the DWT.
The FIFO size is 16 bytes.
A FIFOFULL output is provided, but the processor core does not support this as an
input. An external mechanism is required to stall the core if FIFOFULL is used.
Although stalling the core in a typical application is unlikely to be acceptable, it
provides a mechanism for enabling 100% trace which could be compared with the
partial trace obtained for a non-stalled run.
Copyright © 2005, 2006 ARM Limited. All rights reserved.
ARM DDI 0337B
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