F-Tile JESD204C Intel® FPGA IP Design Example User Guide

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ID 691269
Date 12/02/2024
Public
Document Table of Contents
Document Table of Contents x
1. About the F-Tile JESD204C Intel® FPGA IP Design Example User Guide 2. F-Tile JESD204C Intel® FPGA IP Design Example Quick Start Guide 3. Detailed Description for the F-Tile JESD204C Design Example 4. Document Revision History for the F-Tile JESD204C Intel® FPGA IP Design Example User Guide
2. F-Tile JESD204C Intel® FPGA IP Design Example Quick Start Guide x
2.1. Design Example Block Diagram 2.2. Hardware and Software Requirements 2.3. Generating the Design 2.4. Simulating the Design Example Testbench 2.5. Compiling the Design Example 2.6. Compiling and Testing the Design
2.3. Generating the Design x
2.3.1. Design Example Parameters 2.3.2. Directory Structure
3. Detailed Description for the F-Tile JESD204C Design Example x
3.1. System Components 3.2. F-Tile JESD204C Design Example Clock and Reset 3.3. F-Tile JESD204C Design Example Signals 3.4. F-Tile JESD204C Design Example Control Registers 3.5. Hardware Test for System Console Control Design Example
3.1. System Components x
3.1.1. JTAG to Avalon® Master Bridge 3.1.2. Parallel I/O (PIO) Core 3.1.3. SPI Master 3.1.4. IOPLL 3.1.5. SYSREF Generator 3.1.6. Reset Sequencers 3.1.7. 3-Wire SPI 3.1.8. System PLL 3.1.9. Pattern Generator and Checker 3.1.10. F-Tile JESD204C TX and RX IP
3.5. Hardware Test for System Console Control Design Example x
3.5.1. Board Connectivity
1. About the F-Tile JESD204C Intel® FPGA IP Design Example User Guide
2. F-Tile JESD204C Intel® FPGA IP Design Example Quick Start Guide
3. Detailed Description for the F-Tile JESD204C Design Example
4. Document Revision History for the F-Tile JESD204C Intel® FPGA IP Design Example User Guide

3.1.8. System PLL

F-Tile has three on-board system PLLs. These system PLLs are the primary clock source for hard IP (MAC, PCS, and FEC) and EMIB crossing. This means that, when you use the system PLL clocking mode, the blocks are not clocked by the PMA clock and do not depend on a clock coming from the FPGA core. Each system PLL only generates the clock associated with one frequency interface. For example, you need two system PLLs to run one interface at 1 GHz and one interface at 500 MHz. Using a system PLL allows you to use every lane independently without a lane clock change affecting a neighboring lane.

Each system PLL can use any one of eight FGT reference clocks. System PLLs can share a reference clock or have different reference clocks. Each interface can choose which system PLL it uses, but, once chosen, it is fixed, not reconfigurable using dynamic reconfiguration.

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