Page History

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Description: 

From time to time there are problems with PCIe on some TEBF0808/TE080x combinations. The problem has various causes and is usually one or a combination of the following:

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This change affects all Trenz Electronic TEBF08x8 TEBF0808 together with compatible SoMs: TE08xxTE080x.

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Impact: Carrier with still use AC coupled reference clk for PCIe , on the carrier.recommended to modify carrier, see #2

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Reason: DC coupled HSCL standard is more compline to PCIe specification and will improve PCIe Stability.  Capacitor C93 and C94 of PCI_REF_*/CLK0_* will should be replaced with 0Ohm resistor

Impact: Carrier with Design which still use AC coupled reference clk for PCIe, see #2LVDS as PLL output for PCIe CLK to the carrier.  It's recommended to configuration to HSCL, see #1

Method of Identification

Production Shipment Schedule

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• #1: Check PLL project files of your design
  TE0808/TE0807:
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  TE0803:
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• #2:Check TEBF0808 PCN and assembly  option of C93/C94 on the carrier.
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Contact Information

If you have any questions related to this PCN, please contact Trenz Electronics Technical Support at

• forum.trenz-electronic.de
• wiki.trenz-electronic.de
• support%trenz-electronic.de (subject = PCN-JJJJMMDD)

• phone

  • national calls: 05741 3200-0

  • international calls: 0049 5741 3200-0

Disclaimer

Any projected dates in this PCN are based on the most current product information at the time this PCN is being issued, but they may change due to unforeseen circumstances.  For the latest schedule and any other information, please contact your local Trenz Electronic sales office, technical support or local distributor.

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