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1. Overview
2. Implementing the Transceiver PHY Layer in L-Tile/H-Tile
3. PLLs and Clock Networks
4. Resetting Transceiver Channels
5. Intel® Stratix® 10 L-Tile/H-Tile Transceiver PHY Architecture
6. Reconfiguration Interface and Dynamic Reconfiguration
7. Calibration
8. Debugging Transceiver Links
A. Logical View of the L-Tile/H-Tile Transceiver Registers
2.1. Transceiver Design IP Blocks
2.2. Transceiver Design Flow
2.3. Configuring the Native PHY IP Core
2.4. Using the Intel® Stratix® 10 L-Tile/H-Tile Transceiver Native PHY Intel® Stratix® 10 FPGA IP Core
2.5. Implementing the PHY Layer for Transceiver Protocols
2.6. Unused or Idle Transceiver Channels
2.7. Simulating the Native PHY IP Core
2.8. Implementing the Transceiver Native PHY Layer in L-Tile/H-Tile Revision History
2.3.1. Protocol Presets
2.3.2. GXT Channels
2.3.3. General and Datapath Parameters
2.3.4. PMA Parameters
2.3.5. PCS-Core Interface Parameters
2.3.6. Analog PMA Settings Parameters
2.3.7. Enhanced PCS Parameters
2.3.8. Standard PCS Parameters
2.3.9. PCS Direct Datapath Parameters
2.3.10. Dynamic Reconfiguration Parameters
2.3.11. Generation Options Parameters
2.3.12. PMA, Calibration, and Reset Ports
2.3.13. PCS-Core Interface Ports
2.3.14. Enhanced PCS Ports
2.3.15. Standard PCS Ports
2.3.16. Transceiver PHY PCS-to-Core Interface Reference Port Mapping
2.3.17. IP Core File Locations
2.4.2.1. Receiver Word Alignment
2.4.2.2. Receiver Clock Compensation
2.4.2.3. Encoding/Decoding
2.4.2.4. Running Disparity Control and Check
2.4.2.5. FIFO Operation for the Enhanced PCS
2.4.2.6. Polarity Inversion
2.4.2.7. Data Bitslip
2.4.2.8. Bit Reversal
2.4.2.9. Byte Reversal
2.4.2.10. Double Rate Transfer Mode
2.4.2.11. Asynchronous Data Transfer
2.4.2.12. Low Latency
2.5.1.1. Transceiver Channel Datapath for PIPE
2.5.1.2. Supported PIPE Features
2.5.1.3. How to Connect TX PLLs for PIPE Gen1, Gen2, and Gen3 Modes
2.5.1.4. How to Implement PCI Express (PIPE) in Intel® Stratix® 10 Transceivers
2.5.1.5. Native PHY IP Core Parameter Settings for PIPE
2.5.1.6. fPLL IP Core Parameter Settings for PIPE
2.5.1.7. ATX PLL IP Core Parameter Settings for PIPE
2.5.1.8. Native PHY IP Core Ports for PIPE
2.5.1.9. fPLL Ports for PIPE
2.5.1.10. ATX PLL Ports for PIPE
2.5.1.11. Preset Mappings to TX De-emphasis
2.5.1.12. How to Place Channels for PIPE Configurations
2.5.1.13. Link Equalization for Gen3
2.5.1.14. Timing Closure Recommendations
3.1. PLLs
3.2. Input Reference Clock Sources
3.3. Transmitter Clock Network
3.4. Clock Generation Block
3.5. FPGA Fabric-Transceiver Interface Clocking
3.6. Double Rate Transfer Mode
3.7. Transmitter Data Path Interface Clocking
3.8. Receiver Data Path Interface Clocking
3.9. Channel Bonding
3.10. PLL Cascading Clock Network
3.11. Using PLLs and Clock Networks
3.12. PLLs and Clock Networks Revision History
4.1. When Is Reset Required?
4.2. Transceiver PHY Reset Controller Intel® Stratix® 10 FPGA IP Implementation
4.3. How Do I Reset?
4.4. Using PCS Reset Status Port
4.5. Using Transceiver PHY Reset Controller Intel® Stratix® 10 FPGA IP
4.6. Using a User-Coded Reset Controller
4.7. Combining Status or PLL Lock Signals with User Coded Reset Controller
4.8. Resetting Transceiver Channels Revision History
4.3.1.1. Resetting the Transmitter After Power Up
4.3.1.2. Resetting the Transmitter During Device Operation
4.3.1.3. Resetting the Receiver After Power Up
4.3.1.4. Resetting the Receiver During Device Operation (Auto Mode)
4.3.1.5. Clock Data Recovery in Manual Lock Mode
4.3.1.6. Special TX PCS Reset Release Sequence
4.5.1. Parameterizing Transceiver PHY Reset Controller Intel® Stratix® 10 FPGA IP
4.5.2. Transceiver PHY Reset Controller Intel® Stratix® 10 FPGA IP Parameters
4.5.3. Transceiver PHY Reset Controller Intel® Stratix® 10 FPGA IP Interfaces
4.5.4. Transceiver PHY Reset Controller Intel® Stratix® 10 FPGA IP Resource Utilization
5.1. PMA Architecture
5.2. Enhanced PCS Architecture
5.3. Intel® Stratix® 10 Standard PCS Architecture
5.4. Intel® Stratix® 10 PCI Express Gen3 PCS Architecture
5.5. PCS Support for GXT Channels
5.6. Square Wave Generator
5.7. PRBS Pattern Generator
5.8. PRBS Pattern Verifier
5.9. Loopback Modes
5.10. Intel® Stratix® 10 L-Tile/H-Tile Transceiver PHY Architecture Revision History
5.1.2.1.1. Programmable Differential On-Chip Termination (OCT)
5.1.2.1.2. Signal Detector
5.1.2.1.3. Continuous Time Linear Equalization (CTLE)
5.1.2.1.4. Variable Gain Amplifier (VGA)
5.1.2.1.5. Adaptive Parametric Tuning (ADAPT) Engine
5.1.2.1.6. Decision Feedback Equalization (DFE)
5.1.2.1.7. On-Die Instrumentation
5.2.1.1. TX Core FIFO
5.2.1.2. TX PCS FIFO
5.2.1.3. Interlaken Frame Generator
5.2.1.4. Interlaken CRC-32 Generator
5.2.1.5. 64B/66B Encoder and Transmitter State Machine (TX SM)
5.2.1.6. Scrambler
5.2.1.7. Interlaken Disparity Generator
5.2.1.8. TX Gearbox, TX Bitslip and Polarity Inversion
5.2.1.9. KR FEC Blocks
5.2.2.1. RX Gearbox, RX Bitslip, and Polarity Inversion
5.2.2.2. Block Synchronizer
5.2.2.3. Interlaken Disparity Checker
5.2.2.4. Descrambler
5.2.2.5. Interlaken Frame Synchronizer
5.2.2.6. 64B/66B Decoder and Receiver State Machine (RX SM)
5.2.2.7. 10GBASE-R Bit-Error Rate (BER) Checker
5.2.2.8. Interlaken CRC-32 Checker
5.2.2.9. RX PCS FIFO
5.2.2.10. RX Core FIFO
5.3.1.4.1. 8B/10B Encoder Control Code Encoding
5.3.1.4.2. 8B/10B Encoder Reset Condition
5.3.1.4.3. 8B/10B Encoder Idle Character Replacement Feature
5.3.1.4.4. 8B/10B Encoder Current Running Disparity Control Feature
5.3.1.4.5. 8B/10B Encoder Bit Reversal Feature
5.3.1.4.6. 8B/10B Encoder Byte Reversal Feature
5.3.2.1.1. Word Aligner Bitslip Mode
5.3.2.1.2. Word Aligner Manual Mode
5.3.2.1.3. Word Aligner Synchronous State Machine Mode
5.3.2.1.4. Word Aligner Deterministic Latency Mode
5.3.2.1.5. Word Aligner Pattern Length for Various Word Aligner Modes
5.3.2.1.6. Word Aligner RX Bit Reversal Feature
5.3.2.1.7. Word Aligner RX Byte Reversal Feature
5.3.2.6.1. Byte Deserializer Disabled Mode
5.3.2.6.2. Byte Deserializer Deserialize x2 Mode
5.3.2.6.3. Byte Deserializer Deserialize x4 Mode
5.3.2.6.4. Bonded Byte Deserializer
5.3.2.6.5. Byte Ordering Register-Transfer Level (RTL)
5.3.2.6.6. Byte Serializer Effects on Data Propagation at the RX Side
5.3.2.6.7. ModelSim Byte Ordering Analysis
6.1. Reconfiguring Channel and PLL Blocks
6.2. Interacting with the Reconfiguration Interface
6.3. Multiple Reconfiguration Profiles
6.4. Arbitration
6.5. Recommendations for Dynamic Reconfiguration
6.6. Steps to Perform Dynamic Reconfiguration
6.7. Direct Reconfiguration Flow
6.8. Native PHY IP or PLL IP Core Guided Reconfiguration Flow
6.9. Reconfiguration Flow for Special Cases
6.10. Changing Analog PMA Settings
6.11. Ports and Parameters
6.12. Dynamic Reconfiguration Interface Merging Across Multiple IP Blocks
6.13. Embedded Debug Features
6.14. Timing Closure Recommendations
6.15. Unsupported Features
6.16. Transceiver Register Map
6.17. Reconfiguration Interface and Dynamic Revision History
7.5.1. Recalibrating a Duplex Channel (Both PMA TX and PMA RX)
7.5.2. Recalibrating the PMA RX Only in a Duplex Channel
7.5.3. Recalibrating the PMA TX Only in a Duplex Channel
7.5.4. Recalibrating a PMA Simplex RX Without a Simplex TX Merged into the Same Physical Channel
7.5.5. Recalibrating a PMA Simplex TX Without a Simplex RX Merged into the Same Physical Channel
7.5.6. Recalibrating Only a PMA Simplex RX in a Simplex TX Merged Physical Channel
7.5.7. Recalibrating Only a PMA Simplex TX in a Simplex RX Merged Physical Channel
7.5.8. Recalibrating the fPLL
7.5.9. Recalibrating the ATX PLL
7.5.10. Recalibrating the CMU PLL When it is Used as a TX PLL
A.4.1. Transmitter PMA Logical Register Map
A.4.2. Receiver PMA Logical Register Map
A.4.3. Pattern Generators and Checkers
A.4.4. Loopback
A.4.5. Optional Reconfiguration Logic PHY- Capability
A.4.6. Optional Reconfiguration Logic PHY- Control & Status
A.4.7. Embedded Streamer (Native PHY)
A.4.8. Static Polarity Inversion
A.4.9. Reset
A.4.10. CDR/CMU and PMA Calibration
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2.5.1.7. ATX PLL IP Core Parameter Settings for PIPE
This section contains the recommended parameter values for this protocol. Refer to Using the Intel® Stratix® 10 L-Tile/H-Tile Transceiver Native PHY IP Core for the full range of parameter values.
Parameter | Gen1 PIPE | Gen2 PIPE | Gen3 PIPE |
---|---|---|---|
Message level for rule violations | Error | Error | Error |
Protocol mode | PCIe Gen 1 | PCIe G2 | PCIe G3 |
Bandwidth | Low, medium, high | Low, medium, high | Low, medium, high |
Number of PLL reference clocks | 1 | 1 | 1 |
Selected reference clock source | 0 | 0 | 0 |
VCCR_GXB and VCCT_GXB supply voltage for the transceiver | 1_0V, 1_1V | 1_0V, 1_1V | 1_0V, 1_1V |
Primary PLL clock output buffer | GX clock output buffer | GX clock output buffer | GX clock output buffer |
Enable GX clock output port (tx_serial_clk) | On | On | On |
Enable GXT clock output port to above ATX PLL (gxt_output_to_abv_atx) | Off | Off | Off |
Enable GXT clock output port to below ATX PLL (gxt_output_to_blw_atx) | Off | Off | Off |
Enable GXT local clock output porttx_serial_clk_gxt) | Off | Off | Off |
Enable GXT clock input port from above ATX PLL (gxt_input_from_abv_atx) | Off | Off | Off |
Enable GXT clock input port from below ATX PLL (gxt_input_from_blw_atx) | Off | Off | Off |
Enable PCIe clock output port | On | On | Off 37 |
Enable ATX to fPLL cascade clock output port | N/A | N/A | N/A |
Enable GXT clock buffer to above ATX PLL | Off | Off | Off |
Enable GXT clock buffer to below ATX PLL | Off | Off | Off |
GXT output clock source | Disabled | Disabled | Disabled |
PLL output frequency | 1250MHz | 2500MHz | 4000MHz |
PLL output datarate | 2500Mbps | 5000Mbps | 8000Mbps |
PLL auto mode reference clock frequency(integer) | 100MHz | 100MHz | 100MHz |
Configure counters manually | Off | Off | Off |
Multiply factor (M-counter) | N/A | N/A | N/A |
Divide factor (N-counter) | N/A | N/A | N/A |
Divide factor (L-counter) | N/A | N/A | N/A |
Include Master clock generation block | x1 — Off x2, x4, x8, x16 — On |
x1 — Off x2, x4, x8, x16 — On |
x1 — Off x2, x4, x8, x16 — On |
Clock division factor | 1 | 1 | 1 |
Enable x24 non-bonded high – speed clock output port | Off | Off | Off |
Enable PCIe clock switch interface | Off | Off | On |
Enable mcgb_rst and mcgb_rst_stat ports | Off | Off | Off |
Number of auxiliary MCGB clock input ports | 0 | 0 | x1 — N/A x2, x4, x8, x16 — 1 |
MCGB input clock frequency | 1250MHz | 2500MHz | 4000MHz |
MCGB output data rate | 2500Mbps | 5000Mbps | 8000Mbps |
Enable bonding clock output ports | x1 — Off x2, x4, x8, x16 — On |
x1 — Off x2, x4, x8, x16 — On |
x1 — Off x2, x4, x8, x16 — On |
PMA interface width | 10 | 10 | 32 |
Enable Dynamic reconfiguration | On / Off | On / Off | On / Off |
Enable Native PHY debug master endpoint | On / Off | On / Off | On / Off |
Separate reconfig_waitrequest from the status of AVMM arbitration with PreSICE | Off | Off | Off |
Enable capability registers | On / Off | On / Off | On / Off |
Set user – defined IP identifier | <IP identifier> | <IP identifier> | <IP identifier> |
Enable control and status registers | On / Off | On / Off | On / Off |
Configuration file prefix | <File prefix> | <File prefix> | <File prefix> |
Generate SystemVerilog package file | On / Off | On / Off | On / Off |
Generate C header file | On / Off | On / Off | On / Off |
Generate MIF (Memory Initialization file) | On / Off | On / Off | On / Off |
Enable multiple reconfiguration profiles | Off | Off | Off |
Enable embedded reconfiguration streamer | Off | Off | Off |
Generate reduced reconfiguration files | Off | Off | Off |
37 Use the pll_pcie_clk output port from the fPLL to drive the hclk.