Intel Cyclone 10 LP Device Design Guidelines

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ID 683861
Date 3/28/2019
Public
Document Table of Contents
Document Table of Contents x
Intel® Cyclone® 10 LP Device Design Guidelines
Intel® Cyclone® 10 LP Device Design Guidelines x
Design Flow 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 Document Revision History for Intel® Cyclone® 10 LP Device Design Guidelines
System Specification x
Design Specifications IP Selection Platform Designer
Device Selection x
Device Variant PLLs and Clock Routing Logic, Memory, and Multiplier Density I/O Pin Count, LVDS Channels, and Package Offering Speed Grade Vertical Device Migration
Early System and Board Planning x
Early Power Estimation Planning for Device Configuration Planning for On-chip Debugging
Planning for Device Configuration x
Configuration Scheme Selection Configuration Features Intel® Quartus® Prime Configuration Settings
Configuration Scheme Selection x
Serial Configuration Devices Download Cables
Intel® Quartus® Prime Configuration Settings x
Optional Configuration Pins
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 Intel® 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 Board Design Guidelines
Configuration Pin Connections x
Clock Trace Signal Integrity JTAG Pins MSEL Configuration Mode Pins Other Configuration Pins
JTAG Pins x
JTAG Pin Connections Download Cable Operating Voltage JTAG Signal Buffering
Board-related Intel® Quartus® Prime Settings x
Device-wide Output Enable Pin Unused Pins
Signal Integrity Considerations x
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 Features I/O Simultaneous Switching Noise
I/O Features and Pin Connections x
I/O Signaling Type Selectable Standards and Flexible I/O Banks Dual-Purpose and Special Pin Connections Intel® Cyclone® 10 LP I/O Features
PLL Feature Guidelines x
Clock Feedback Mode Clock Outputs
Design Entry x
Design Recommendations Using IP Cores Recommended HDL Coding Styles Register Power-up Levels and Control Signals
Design Implementation, Analysis, Optimization, and Verification x
Selecting a Synthesis Tool Device Resource Utilization Reports Intel® Quartus® Prime Messages Timing Constraints and Analysis Area and Timing Optimization Preserving Performance and Reducing Compilation Time Simulation Power Analysis Power Optimization
Timing Constraints and Analysis x
Recommended Timing Optimization and Analysis Assignments
Power Optimization x
Device and Design Power Optimization Techniques Intel® Quartus® Prime Power Optimization Techniques
Device and Design Power Optimization Techniques x
Clock Power Management Memory Power Reduction I/O Power Guidelines
Intel® Cyclone® 10 LP Device Design Guidelines

Clock and PLL Selection

Table 46.  Clock and PLL Selection Checklist
Number Done? Checklist Item
1   Use the correct dedicated clock pins and routing signals for clock and global control signals.
2   Use the device PLLs for clock management.
3   Analyze input and output routing connections for each PLL and clock pin. Ensure PLL inputs come from the dedicated clock pins or from another PLL.

The first stage in planning your clocking scheme is to determine your system clock requirements. Understand your device’s available clock resources and correspondingly plan the design clocking scheme. Consider your requirements for timing performance, and how much logic is driven by a particular clock.

Intel® Cyclone® 10 LP devices provide dedicated low-skew and high fan-out routing networks.

The dedicated clock pins drive the clock network directly, ensuring lower skew than other I/O pins. Use the dedicated routing network to have a predictable delay with less skew for high fan-out signals. You can also use the clock pins and clock network to drive control signals like asynchronous reset.

Connect clock inputs to specific PLLs to drive specific low-skew routing networks. Analyze the global resource availability for each PLL and the PLL availability for each clock input pin.

Use the following information to help determine which clock networks are appropriate for the clock signals in your design:
  • The GCLK networks can drive throughout the entire device, serving as low-skew clock sources for device logic. This clock region has the maximum delay when compared with to other clock regions but allows the signal to reach everywhere within the device. This option is good for routing global reset and clear signals or routing clocks throughout the device.
  • IOEs and internal logic can also drive GCLKs to create internally generated GCLKs and other high fan-out control signals; for example, synchronous or asynchronous clears and clock enables.
  • PLLs cannot be driven by internally generated GCLKs. The input clock to the PLL must come from dedicated clock input pins, fed by a pin-driven dedicated GCLK, or through a clock control block if the clock control block is fed by an output from another PLL or a pin-driven dedicated GCLK.

If your system requires more clock or control signals than are available in the target device, consider cases where the dedicated clock resource could be spared, particularly low fan-out and low-frequency signals where clock delay and clock skew do not have a significant impact on the design performance. Use the Global Signal assignment in the Intel® Quartus® Prime Assignment Editor to select the type of global routing, or set the assignment to Off to specify that the signal should not use any global routing resources.

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