Intel® Cyclone® 10 GX Device Design Guidelines

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ID 683703
Date 11/06/2017
Public
Document Table of Contents
Document Table of Contents x
Intel® Cyclone® 10 GX Device Design Guidelines
Intel® Cyclone® 10 GX Device Design Guidelines x
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
System Specification x
Design Specifications IP Selection Platform Designer
Device Selection x
Logic, Memory, and Multiplier Density I/O Pin Count, LVDS Channels, and Package Offering PLLs and Clock Routing Speed Grade Vertical Device Migration
Early System and Board Planning x
Early Power Estimation Temperature Sensing for Thermal Management Voltage Sensor Planning for Device Configuration Planning for On-Chip Debugging
Planning for Device Configuration x
Configuration Scheme Selection Configuration Features Quartus Prime Configuration Settings
Configuration Scheme Selection x
Serial Configuration Devices Download Cables Using the Parallel Flash Loader Intel® FPGA IP with MAX Devices
Configuration Features x
Data Compression Design Security Using Configuration Bitstream Encryption Remote System Upgrades SEU Mitigation and CRC Error Checks
Planning for On-Chip Debugging x
On-Chip Debugging Tools Planning Guidelines for Debugging Tools
Pin Connection Considerations for Board Design x
Device Power-Up Power Pin Connections and Power Supplies Configuration Pin Connections Board-Related Quartus Prime Settings Signal Integrity Considerations Board-Level Simulation and Advanced I/O Timing Analysis
Power Pin Connections and Power Supplies x
Decoupling Capacitors PLL and Transceiver Board Design Guidelines
Configuration Pin Connections x
DCLK and TCK Signal Integrity JTAG Pins MSEL Configuration Mode Pins Other Configuration Pins
Board-Related Quartus Prime Settings x
Device-Wide Output Enable Pin Unused Pins
Signal Integrity Considerations x
High-Speed Board Design Voltage Reference Pins Simultaneous Switching Noise I/O Termination
I/O and Clock Planning x
Making FPGA Pin Assignments Early Pin Planning and I/O Assignment Analysis I/O Features and Pin Connections Clock and PLL Selection PLL Feature Guidelines Clock Control Block I/O Simultaneous Switching Noise
I/O Features and Pin Connections x
I/O Signaling Type Selectable I/O Standards and Flexible I/O Banks Memory Interfaces Dual-Purpose and Special Pin Connections Cyclone® 10 GX I/O Features
PLL Feature Guidelines x
Clock Feedback Mode Clock Outputs
Design Entry x
Design Recommendations Using IP Cores Reconfiguration Recommended HDL Coding Styles Register Power-Up Levels and Control Signals Planning for Hierarchical and Team-Based Design
Reconfiguration x
Dynamic Reconfiguration
Planning for Hierarchical and Team-Based Design x
Planning Design Partitions Planning in Bottom-Up and Team-Based Flows Creating a Design Floorplan
Design Implementation, Analysis, Optimization, and Verification x
Selecting a Synthesis Tool Device Resource Utilization Reports Quartus Prime Messages Timing Constraints and Analysis Area and Timing Optimization Preserving Performance and Reducing Compilation Time Simulation Formal Verification Power Analysis Power Optimization
Timing Constraints and Analysis x
Recommended Timing Optimization and Analysis Assignments
Power Optimization x
Device and Design Power Optimization Techniques Quartus Prime Power Optimization Techniques
Device and Design Power Optimization Techniques x
Clock Power Management Memory Power Reduction I/O Power Guidelines
Quartus Prime Power Optimization Techniques x
Power Optimization Advisor
Appendix: Cyclone® 10 GX Transceiver Design Guidelines x
Transceiver PHY Architecture Overview Transceiver Bank Architecture PHY Layer Transceiver Components Transceiver Phase-Locked Loops Clock Generation Block (CGB) Calibration Transceiver Design Flow
PHY Layer Transceiver Components x
The GX Transceiver Channel
Transceiver Phase-Locked Loops x
Advanced Transmit (ATX) PLL Fractional PLL (fPLL) Channel PLL (CMU/CDR PLL)
Intel® Cyclone® 10 GX Device Design Guidelines

JTAG Pins

Table 24.  JTAG Pins Checklist
Number Done? Checklist Item
1   Connect JTAG pins to a stable voltage level if not in use.

Because JTAG configuration takes precedence over all other configuration methods, the JTAG pins should not be left floating or toggling during configuration if you do not use the JTAG interface. If you use the JTAG interface, follow the guidelines in this section.

JTAG Pin Connections

A device operating in JTAG mode uses four required pins—TDI, TDO, TMS, and TCK— and one optional pin, TRST. The TCK pin has an internal weak pull-down resistor, while the TDI, TMS, and TRST pins have weak internal pull-up resistors. The JTAG output pin TDO and all JTAG input pins are powered by the 1.2 V, 1.5 V, and 1.8 V VCCPGM. All JTAG pins are tri-stated during JTAG reconfiguration. Do not drive voltage lower than 1.8 V, 1.5 V, and 1.2-V VCCPGM supply for the TDI, TMS, TCK, and TRST pins. The voltage supplies for TDI, TMS, TCK, and TRST input pins must be the same as set for the VCCPGM supply.

Table 25.  JTAG Pin Connections Checklist
Number Done? Checklist Item
1   Connect JTAG pins correctly to the download cable header. Ensure the pin order is not reversed.
2   To disable the JTAG state machine during power-up, pull the TCK pin low through a 1 kΩ resistor to ensure that an unexpected rising edge does not occur on TCK.
3   Pull TMS and TDI high through a 1 kΩ to 10 kΩ resistor.
4   Connect TRST directly to VCCPGM (Connecting the pin low disables the JTAG circuitry).

If you have more than one device in the chain, connect the TDO pin of a device to the TDI pin of the next device in the chain.

Noise on the JTAG pins during configuration, user mode, or power-up can cause the device to go into an undefined state or mode.

Download Cable Operating Voltage

The operating voltage supplied to the Intel download cable by the target board through the 10-pin header determines the operating voltage level of the download cable.

JTAG pins in the Cyclone 10 GX device are powered up by VCCPGM. In a JTAG chain containing devices with different VCCIO levels, ensure that the VIL max, VIH min, and the maximum VI specifications of the device JTAG input pins are not violated. Level shifter might be required between devices to meet the voltage specifications of the devices input pin.

Table 26.  Download Cable Operating Voltage Checklist
Number Done? Checklist Item
1   Ensure the download cable and JTAG pin voltages are compatible because the download cable interfaces with the JTAG pins of your device.

JTAG Signal Buffering

You might have to add buffers to a JTAG chain, depending on the JTAG signal integrity, especially the TCK signal, because it is the JTAG clock and the fastest switching JTAG signal. Intel recommends buffering the signals at the connector because cables and board connectors tend to make bad transmission lines and introduce noise to the signals. After this initial buffer at the connector, add buffers as the chain gets longer or whenever the signals cross a board connector.

If a cable drives three or more devices, buffer the JTAG signal at the cable connector to prevent signal deterioration. This also depends on the board layout, loads, connectors, jumpers, and switches on the board. Anything added to the board that affects the inductance or capacitance of the JTAG signals increases the likelihood that a buffer should be added to the chain.

Each buffer should drive no more than eight loads for the TCK and TMS signals, which drive in parallel. If jumpers or switches are added to the path, decrease the number of loads.

Table 27.  JTAG Signal Buffering Checklist
Number Done? Checklist Item
1   Buffer JTAG signals per the recommendations, especially for connectors or if the cable drives more than three devices.
2   If your device is in a configuration chain, ensure all devices in the chain are connected properly.
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