Intel® Agilex™ Clocking and PLL User Guide

ID 683761
Date 3/26/2022
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Document Table of Contents
Document Table of Contents
1. Intel® Agilex™ Clocking and PLL Overview 2. Intel® Agilex™ Clocking and PLL Architecture and Features 3. Intel® Agilex™ Clocking and PLL Design Considerations 4. Clock Control Intel® FPGA IP Core 5. IOPLL Intel® FPGA IP Core 6. IOPLL Reconfig Intel® FPGA IP Core 7. Intel® Agilex™ Clocking and PLL User Guide Archives 8. Document Revision History for the Intel® Agilex™ Clocking and PLL User Guide
1. Intel® Agilex™ Clocking and PLL Overview
1.1. Clock Networks Overview 1.2. PLLs Overview
2. Intel® Agilex™ Clocking and PLL Architecture and Features
2.1. Clock Networks Architecture and Features 2.2. PLLs Architecture and Features
2.1. Clock Networks Architecture and Features
2.1.1. Clock Network Architecture 2.1.2. Clock Resources 2.1.3. Clock Control Features
2.1.1. Clock Network Architecture
2.1.1.1. Clock Network Hierarchy 2.1.1.2. Clock Sectors 2.1.1.3. Programmable Clock Routing
2.1.3. Clock Control Features
2.1.3.1. Clock Gating 2.1.3.2. Clock Divider
2.1.3.1. Clock Gating
2.1.3.1.1. Root Clock Gate 2.1.3.1.2. Sector Clock Gate 2.1.3.1.3. I/O PLL Clock Gate 2.1.3.1.4. LAB Clock Gate
2.2. PLLs Architecture and Features
2.2.1. PLL Features 2.2.2. PLL Usage 2.2.3. PLL Locations 2.2.4. PLL Architecture 2.2.5. PLL Control Signals 2.2.6. PLL Feedback Modes 2.2.7. Clock Multiplication and Division 2.2.8. Programmable Phase Shift 2.2.9. Programmable Duty Cycle 2.2.10. PLL Cascading 2.2.11. PLL Input Clock Switchover 2.2.12. PLL Reconfiguration and Dynamic Phase Shift 2.2.13. PLL Calibration
2.2.5. PLL Control Signals
2.2.5.1. Reset 2.2.5.2. Locked
2.2.6. PLL Feedback Modes
2.2.6.1. Direct Compensation Mode 2.2.6.2. LVDS Compensation Mode 2.2.6.3. Source Synchronous Compensation Mode 2.2.6.4. Normal Compensation Mode 2.2.6.5. Zero-Delay Buffer Mode 2.2.6.6. External Feedback Mode
2.2.11. PLL Input Clock Switchover
2.2.11.1. Automatic Switchover 2.2.11.2. Automatic Switchover with Manual Override 2.2.11.3. Manual Clock Switchover
2.2.13. PLL Calibration
2.2.13.1. Power-Up Calibration 2.2.13.2. User Calibration
3. Intel® Agilex™ Clocking and PLL Design Considerations
3.1. Guidelines: Clock Switchover 3.2. Guidelines: Timing Closure 3.3. Guidelines: Resetting the PLL 3.4. Guidelines: Configuration Constraints 3.5. Guidelines: I/O PLL Reconfiguration 3.6. Clocking Constraints 3.7. IP Core Constraints 3.8. Guideline: Achieving 5% Duty Cycle for fOUT_EXT ≥ 300 MHz Using tx_outclk Port from LVDS SERDES Intel® FPGA IP
4. Clock Control Intel® FPGA IP Core
4.1. Release Information for Clock Control Intel® FPGA IP 4.2. Clock Control IP Core Parameters 4.3. Clock Control IP Core Ports and Signals
5. IOPLL Intel® FPGA IP Core
5.1. Release Information for IOPLL Intel® FPGA IP 5.2. .mif File Generation 5.3. IP-XACT File Generation 5.4. IOPLL IP Core Parameters 5.5. IOPLL IP Core Ports and Signals
5.2. .mif File Generation
5.2.1. Generating a New .mif File 5.2.2. Adding Configurations to Existing .mif File
5.3. IP-XACT File Generation
5.3.1. Generating a New IP-XACT File
5.4. IOPLL IP Core Parameters
5.4.1. IOPLL IP Core Parameters - PLL Tab 5.4.2. IOPLL IP Core Parameters - Settings Tab 5.4.3. IOPLL IP Core Parameters - Cascading Tab 5.4.4. IOPLL IP Core Parameters - Dynamic Reconfiguration Tab 5.4.5. IOPLL IP Core Parameters - Advanced Parameters Tab
6. IOPLL Reconfig Intel® FPGA IP Core
6.1. Release Information for IOPLL Reconfig Intel® FPGA IP 6.2. Implementing I/O PLL Reconfiguration in the IOPLL Reconfig IP Core 6.3. IOPLL Reconfig IP Core Reconfiguration Modes 6.4. Avalon® Memory-Mapped Interface Ports in the IOPLL Reconfig IP Core 6.5. Address Bus and Data Bus Settings 6.6. Design Example
6.2. Implementing I/O PLL Reconfiguration in the IOPLL Reconfig IP Core
6.2.1. Connectivity between the IOPLL and IOPLL Reconfig IP Cores 6.2.2. Connecting the IOPLL and IOPLL Reconfig IP Cores
6.3. IOPLL Reconfig IP Core Reconfiguration Modes
6.3.1. .mif Streaming Reconfiguration 6.3.2. Advanced Mode Reconfiguration 6.3.3. Clock Gating Reconfiguration 6.3.4. Dynamic Phase Shift Reconfiguration
6.3.1. .mif Streaming Reconfiguration
6.3.1.1. Recalibration Using .mif
6.3.2. Advanced Mode Reconfiguration
6.3.2.1. Recalibration Using Advanced Mode
6.5. Address Bus and Data Bus Settings
6.5.1. Address Bus and Data Bus Settings for Advanced Mode Reconfiguration 6.5.2. Output Clock and the Corresponding Data Bit Setting for Clock Gating Reconfiguration 6.5.3. Data Bus Setting for Dynamic Phase Shift for IOPLL Reconfig IP Core
6.5.1. Address Bus and Data Bus Settings for Advanced Mode Reconfiguration
6.5.1.1. Data Bus Setting for Bandwidth Control and Charge Pump 6.5.1.2. Data Bus Setting for Ripplecap
6.6. Design Example
6.6.1. Reconfiguration Option: .mif Streaming Reconfiguration Using IOPLL Reconfig IP Core 6.6.2. Reconfiguration Option: Advanced Mode Reconfiguration and Recalibration Using IOPLL Reconfig IP Core 6.6.3. Reconfiguration Option: Clock Gating Reconfiguration Using IOPLL Reconfig IP Core
1. Intel® Agilex™ Clocking and PLL Overview
2. Intel® Agilex™ Clocking and PLL Architecture and Features
3. Intel® Agilex™ Clocking and PLL Design Considerations
4. Clock Control Intel® FPGA IP Core
5. IOPLL Intel® FPGA IP Core
6. IOPLL Reconfig Intel® FPGA IP Core
7. Intel® Agilex™ Clocking and PLL User Guide Archives
8. Document Revision History for the Intel® Agilex™ Clocking and PLL User Guide

6.5.1.1. Data Bus Setting for Bandwidth Control and Charge Pump

Table 19.  I/O Bank I/O PLL Data Bus Setting for Bandwidth Control and Charge Pump (For Low Bandwidth)
Multiply Factor 15 Low Bandwidth
Bandwidth Control Setting

Data [6:3]

 Charge Pump Setting [2:0]

Address = 00000001

Data [6:4]

Charge Pump Setting [5:3]

Address = 00001101

Data [7:5]

4–5 4'b0011 3'b011 3'b000
6–7 4'b0011 3'b011 3'b000
8–10 4'b0011 3'b100 3'b000
11–15 4'b0100 3'b100 3'b000
16–20 4'b0101 3'b100 3'b000
21–23 4'b0101 3'b101 3'b000
24–43 4'b0110 3'b100 3'b000
44–64 4'b0111 3'b100 3'b000
65–85 4'b1000 3'b100 3'b000
86–124 4'b1010 3'b011 3'b000
125–160 4'b1010 3'b011 3'b000
Table 20.  I/O Bank I/O PLL Data Bus Setting for Bandwidth Control and Charge Pump (For Medium Bandwidth)
Multiply Factor 15 Medium Bandwidth
Bandwidth Control Setting

Data [6:3]

 Charge Pump Setting [2:0]

Address = 00000001

Data [6:4]

Charge Pump Setting [5:3]

Address = 00001101

Data [7:5]

4–5 4'b0010 3'b110 3'b000
6–7 4'b0011 3'b101 3'b000
8–10 4'b0011 3'b101 3'b000
11–15 4'b0011 3'b110 3'b000
16–20 4'b0100 3'b110 3'b000
21–23 4'b0100 3'b111 3'b000
24–43 4'b0101 3'b110 3'b000
44–64 4'b0110 3'b110 3'b000
65–85 4'b0111 3'b110 3'b000
86–124 4'b1000 3'b110 3'b000
125–160 4'b1010 3'b100 3'b000
Table 21.  I/O Bank I/O PLL Data Bus Setting for Bandwidth Control and Charge Pump (For High Bandwidth)
Multiply Factor 15 High Bandwidth
Bandwidth Control Setting

Data [6:3]

 Charge Pump Setting [2:0]

Address = 00000001

Data [6:4]

Charge Pump Setting [5:3]

Address = 00001101

Data [7:5]

4–5 4'b0010 3'b001 3'b001
6–7 4'b0010 3'b010 3'b001
8–10 4'b0010 3'b011 3'b001
11–15 4'b0011 3'b001 3'b001
16–20 4'b0011 3'b010 3'b001
21–23 4'b0100 3'b010 3'b001
24–43 4'b0100 3'b011 3'b001
44–64 4'b0101 3'b011 3'b001
65–85 4'b0101 3'b011 3'b001
86–124 4'b1001 3'b110 3'b000
125–160 4'b1001 3'b110 3'b000
Table 22.  Fabric-Feeding I/O PLL Data Bus Setting for Bandwidth Control and Charge Pump (For Medium Bandwidth)
Multiply Factor 15 Medium Bandwidth
Bandwidth Control Setting

Data [6:3]

 Charge Pump Setting [2:0]

Address = 00000001

Data [6:4]

Charge Pump Setting [5:3]

Address = 00001101

Data [7:5]

4–5 4'b0011 3'b100 3'b000
6–7 4'b0100 3'b100 3'b000
8–10 4'b0101 3'b100 3'b000
11–15 4'b0110 3'b100 3'b000
16–20 4'b0111 3'b100 3'b000
21–23 4'b0111 3'b100 3'b000
24–43 4'b1001 3'b011 3'b000
44–64 4'b1010 3'b011 3'b000
65–85 4'b1010 3'b100 3'b000
86–104 4'b1010 3'b101 3'b000
105–140 4'b1011 3'b100 3'b000
141–160 4'b1011 3'b100 3'b000
Table 23.  Fabric-Feeding I/O PLL Data Bus Setting for Bandwidth Control and Charge Pump (For High Bandwidth)
Multiply Factor 15 High Bandwidth
Bandwidth Control Setting

Data [6:3]

 Charge Pump Setting [2:0]

Address = 00000001

Data [6:4]

Charge Pump Setting [5:3]

Address = 00001101

Data [7:5]

4–5 4'b0010 3'b001 3'b001
6–7 4'b0011 3'b000 3'b001
8–10 4'b0011 3'b000 3'b001
11–15 4'b0100 3'b000 3'b001
16–20 4'b0110 3'b110 3'b000
21–23 4'b0111 3'b101 3'b000
24–43 4'b1000 3'b101 3'b000
44–64 4'b1001 3'b101 3'b000
65–85 4'b1001 3'b110 3'b000
86–104 4'b1001 3'b110 3'b000
105–140 4'b1010 3'b101 3'b000
141–160 4'b1010 3'b101 3'b000
15 If you select the Use Nondedicated Feedback Path option under the Normal or Source Synchronous compensation mode, the Multiply Factor is M x C i , where M is M counter value while C i is the Compensated Outclk C counter value. Else, the Multiply Factor is only the M counter value.
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