TS-4900 Errata: Difference between revisions
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| PHY violates IEEE specification for jitter | | PHY violates IEEE specification for jitter | ||
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The PHY's published errata [http://ww1.microchip.com/downloads/en/DeviceDoc/80000692B.pdf here] includes items for "1000BASE-T Transmitter Jitter fails to meet IEEE compliance specification" and "1000BASE-T Transmitter Distortion fails to meet IEEE compliance specification". Both can cause linking issues, and the Jitter bug can cause packet loss with some link partners at 1000Base-T. | The PHY's published errata [http://ww1.microchip.com/downloads/en/DeviceDoc/80000692B.pdf here] includes items added on 07-26-16 for "1000BASE-T Transmitter Jitter fails to meet IEEE compliance specification" and "1000BASE-T Transmitter Distortion fails to meet IEEE compliance specification". Both can cause linking issues, and the Jitter bug can cause packet loss with some link partners at 1000Base-T. | ||
| If an issue is seen with a specific link partner either you must use a known good switch, or reduce the ethernet speed to 100Mb/s. | | If an issue is seen with a specific link partner either you must use a known good switch, or reduce the ethernet speed to 100Mb/s. | ||
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