Intel® Cyclone® 10 LP Core Fabric and General Purpose I/Os Handbook
ID
683777
Date
2/15/2023
Public
1. Logic Elements and Logic Array Blocks in Intel® Cyclone® 10 LP Devices
2. Embedded Memory Blocks in Intel® Cyclone® 10 LP Devices
3. Embedded Multipliers in Intel® Cyclone® 10 LP Devices
4. Clock Networks and PLLs in Intel® Cyclone® 10 LP Devices
5. I/O and High Speed I/O in Intel® Cyclone® 10 LP Devices
6. Configuration and Remote System Upgrades
7. SEU Mitigation in Intel® Cyclone® 10 LP Devices
8. JTAG Boundary-Scan Testing for Intel® Cyclone® 10 LP Devices
9. Power Management in Intel® Cyclone® 10 LP Devices
2.1. Embedded Memory Capacity
2.2. Intel® Cyclone® 10 LP Embedded Memory General Features
2.3. Intel® Cyclone® 10 LP Embedded Memory Operation Modes
2.4. Intel® Cyclone® 10 LP Embedded Memory Clock Modes
2.5. Intel® Cyclone® 10 LP Embedded Memory Configurations
2.6. Intel® Cyclone® 10 LP Embedded Memory Design Consideration
2.7. Embedded Memory Blocks in Intel® Cyclone® 10 LP Devices Revision History
4.2.1. PLL Features
4.2.2. PLL Architecture
4.2.3. External Clock Outputs
4.2.4. Clock Feedback Modes
4.2.5. Clock Multiplication and Division
4.2.6. Post-Scale Counter Cascading
4.2.7. Programmable Duty Cycle
4.2.8. PLL Control Signals
4.2.9. Clock Switchover
4.2.10. Programmable Bandwidth
4.2.11. Programmable Phase Shift
4.2.12. PLL Cascading
4.2.13. PLL Reconfiguration
4.2.14. Spread-Spectrum Clocking
5.1. Intel® Cyclone® 10 LP I/O Standards Support
5.2. I/O Resources in Intel® Cyclone® 10 LP Devices
5.3. Intel FPGA I/O IP Cores for Intel® Cyclone® 10 LP Devices
5.4. Intel® Cyclone® 10 LP I/O Elements
5.5. Intel® Cyclone® 10 LP Clock Pins Input Support
5.6. Programmable IOE Features in Intel® Cyclone® 10 LP Devices
5.7. I/O Standards Termination
5.8. Intel® Cyclone® 10 LP High-Speed Differential I/Os and SERDES
5.9. Using the I/Os and High Speed I/Os in Intel® Cyclone® 10 LP Devices
5.10. I/O and High Speed I/O in Intel® Cyclone® 10 LP Devices Revision History
5.8.2.1. LVDS I/O Standard in Intel® Cyclone® 10 LP Devices
5.8.2.2. Bus LVDS I/O Standard in Intel® Cyclone® 10 LP Devices
5.8.2.3. RSDS, Mini-LVDS, and PPDS I/O Standard in Intel® Cyclone® 10 LP Devices
5.8.2.4. LVPECL I/O Standard in Intel® Cyclone® 10 LP Devices
5.8.2.5. Differential SSTL I/O Standard in Intel® Cyclone® 10 LP Devices
5.8.2.6. Differential HSTL I/O Standard in Intel® Cyclone® 10 LP Devices
5.9.1. Guideline: Validate Your Pin Placement
5.9.2. Guideline: Check for Illegal Pad Placements
5.9.3. Guideline: Voltage-Referenced I/O Standards Restriction
5.9.4. Guideline: Simultaneous Usage of Multiple I/O Standards
5.9.5. Guideline: LVTTL or LVCMOS Inputs in Intel® Cyclone® 10 LP Devices
5.9.6. Guideline: Differential Pad Placement
5.9.7. Guideline: Board Design for Signal Quality
6.1.4.1. Configuring Intel® Cyclone® 10 LP Devices with the JRunner Software Driver
6.1.4.2. Configuring Intel® Cyclone® 10 LP Devices with Jam STAPL
6.1.4.3. JTAG Single-Device Configuration
6.1.4.4. JTAG Multi-Device Configuration
6.1.4.5. Combining JTAG and AS Configuration Schemes
6.1.4.6. Programming Serial Configuration Devices In-System with the JTAG Interface
6.1.4.7. JTAG Instructions
5.8.3.2. RSKM Equation
The RSKM equation expresses the relationship between RSKM, TCCS, and SW.
Figure 80. RSKM Equation
Conventions used for the equation:
- RSKM—the timing margin between the clock input of the receiver and the data input sampling window, and the jitter induced from core noise and I/O switching noise.
- Time unit interval (TUI)—time period of the serial data.
- SW—the period of time that the input data must be stable to ensure that the LVDS receiver samples the data successfully. The SW is a device property and varies according to device speed grade.
- TCCS—the timing difference between the fastest and the slowest output edges across channels driven by the same PLL. The TCCS measurement includes the tCO variation, clock, and clock skew.
Note: If there is additional board channel-to-channel skew, consider the total receiver channel-to-channel skew (RCCS) instead of TCCS. .
You must calculate the RSKM value, based on the data rate and device, to determine if the LVDS receiver can sample the data:
- A positive RSKM value, after deducting transmitter jitter, indicates that the LVDS receiver can sample the data properly.
- A negative RSKM value, after deducting transmitter jitter, indicates that the LVDS receiver cannot sample the data properly.
Figure 81. Differential High-Speed Timing Diagram and Timing Budget This figure shows the relationship between the RSKM, TCCS, and the SW of the receiver.