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System Specification
Device Selection
Early System and Board Planning
Pin Connection Considerations for Board Design
I/O and Clock Planning
Design Entry
Design Implementation, Analysis, Optimization, and Verification
Design Checklist
Appendix: Cyclone® 10 GX Transceiver Design Guidelines
Conclusion
Document Revision History
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PHY Layer Transceiver Components
Transceivers in Cyclone® 10 GX devices support both Physical Medium Attachment (PMA) and Physical Coding Sublayer (PCS) functions at the physical (PHY) layer.
A PMA is the transceiver's electrical interface to the physical medium. The transceiver PMA consists of standard blocks such as:
- serializer/deserializer (SERDES)
- clock and data recovery PLL
- analog front end transmit drivers
- analog front end receive buffers
The PCS can be bypassed with a PCS-Direct configuration. Both the PMA and PCS blocks are fed by multiple clock networks driven by high performance PLLs. In PCS-Direct configuration, the data flow is through the PCS block, but all the internal PCS blocks are bypassed. In this mode, the PCS functionality is implemented in the FPGA fabric.