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Latency Testing
6
Latency Testing
In a similar fashion to the BER Testing window, a Latency Testing window (
Figure 12
) is also supplied in
the GUI for easier operation of the internal latency counters in the TLK10232 devices. Once the TLK10232
board is configured for proper latency testing and data is passing, select the Latency Testing window to
configure the test settings and run the test. Each channel of the TLK10232 has a latency counter, but only
one channel can be configured and tested at a time. Once the test settings are selected, pressing the Run
Test button writes the test configuration settings to the TLK10232 and reads the latency status register to
determine if the test is complete. If the test is complete, the Latency Measurement Ready LED glows
green and the Latency Measurement Count is displayed. If the Latency Measurement Ready status bit
fails to indicate the measurement is ready and the test is complete, then the test will time out after the set
timeout is achieved. Rereading the counters is performed by pressing the Re-Read Counter button.
Figure 12. TLK10232 EVM GUI High-Level Device Latency Testing
15
SLLU181 – June 2013
TLK10232 Dual-Channel XAUI/10GBASE-KR Transceiver with Crosspoint
Evaluation Module (EVM) Graphical Users Interface User’s Guide
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