FIFO Overflow Case – Lost Trace - FIFO Overflow Case – Lost Trace - 1.15 English - UG585

Zynq 7000 SoC Technical Reference Manual (UG585)

Document_ID
UG585
Release_Date
2026-02-06
Version
1.15 English

In this scenario, trace packets are not generated until the FIFO is no longer in an overflow condition. An overflow packet is generated to indicate that there was an overflow condition and some trace packets are lost. At least eight clock cycles of FTMDTRACEINCLOCK are needed between FTMDTRACEINDATA packets to avoid a FIFO overflow condition.

Figure 1. Packet Generation, FIFO Overflow Case