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1. GTS Transceiver Overview
2. GTS Transceiver Architecture
3. Implementing the GTS PMA/FEC Direct PHY Intel FPGA IP
4. Implementing the GTS System PLL Clocks Intel FPGA IP
5. Implementing the GTS Reset Sequencer Intel FPGA IP
6. GTS PMA/FEC Direct PHY Intel FPGA IP Example Design
7. Design Assistance Tools
8. Debugging GTS Transceiver Links with Transceiver Toolkit
9. Document Revision History for the GTS Transceiver PHY User Guide
3.1. IP Overview
3.2. Designing with the GTS PMA/FEC Direct PHY Intel FPGA IP
3.3. Configuring the GTS PMA/FEC Direct PHY Intel FPGA IP
3.4. Signal and Port Reference
3.5. Bit Mapping for PMA and FEC Mode PHY TX and RX Datapath
3.6. Clocking
3.7. Custom Cadence Generation Ports and Logic
3.8. Asserting reset
3.9. Bonding Implementation
3.10. Configuration Register
3.11. Configuring the GTS PMA/FEC Direct PHY Intel FPGA IP for Hardware Testing
3.12. Configurable Quartus® Prime Software Settings
3.13. Hardware Configuration Using the Avalon® Memory-Mapped Interface
3.4.1. TX and RX Parallel and Serial Interface Signals
3.4.2. TX and RX Reference Clock and Clock Output Interface Signals
3.4.3. Reset Signals
3.4.4. FEC Signals
3.4.5. PCS Direct Signals: IEEE
3.4.6. PCS Direct Signals: IEEE_FLEXE_66/PCS66
3.4.7. Custom Cadence Control and Status Signals
3.4.8. RX PMA Status Signals
3.4.9. TX and RX PMA and Core Interface FIFO Signals
3.4.10. Avalon Memory-Mapped Interface Signals
3.8.1. Reset Signal Requirements
3.8.2. Power On Reset Requirements
3.8.3. Reset Signals—Block Level
3.8.4. Run-time Reset Sequence—TX
3.8.5. Run-time Reset Sequence—RX
3.8.6. Run-time Reset Sequence—TX + RX
3.8.7. Run-time Reset Sequence—TX with FEC
3.8.8. RX Data Loss/CDR Lock Loss (Auto-Recovery)
3.8.9. TX PLL Lock Loss
6.1. Instantiating the GTS PMA/FEC Direct PHY Intel FPGA IP
6.2. Generating the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design
6.3. GTS PMA/FEC Direct PHY Intel FPGA IP Example Design Functional Description
6.4. Simulating the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design Testbench
6.5. Compiling the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design
6.6. Hardware Testing the GTS PMA/FEC Direct PHY Intel FPGA IP Example Design
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2.6.2. Datapath Clock Network
There are 2 datapath clocking modes, the system PLL clocking mode and the PMA clocking mode.
For the system PLL clocking mode, where the datapath is clocked by the system PLL:
- The system PLL clocking mode must be used for PCIe, Ethernet, PCS direct and FEC direct modes.
- The PMA direct mode can also be clocked by system PLL.
- System PLL clocking must be used for dynamic reconfiguration.
Figure 25. System PLL Clocking Mode
For the PMA clocking mode, which can only be used for PMA direct mode:
- TX datapath is clocked by the TX PLL
- RX datapath is clocked by the CDR
Figure 26. PMA Clocking Mode
Refer to Supported PMA Data Widths and Date Rates for supported data rates.