1. About the GTS JESD204C Intel® FPGA IP User Guide
2. Overview of the GTS JESD204C Intel® FPGA IP
3. Functional Description
4. Getting Started
5. Designing with the GTS JESD204C Intel® FPGA IP
6. GTS JESD204C Intel® FPGA IP Parameters
7. Interface Signals
8. Control and Status Registers
9. Document Revision History for the GTS JESD204C Intel® FPGA IP User Guide
4.1. Installing and Licensing Intel® FPGA IP Cores
4.2. Intel® FPGA IP Evaluation Mode
4.3. IP Catalog and Parameter Editor
4.4. GTS JESD204C IP Component Files
4.5. Creating a New Quartus® Prime Project
4.6. Parameterizing and Generating the IP
4.7. Compiling the GTS JESD204C IP Design
4.8. Programming an FPGA Device
5.1. Configuring the GTS Reset Sequencer Intel® FPGA IP
5.2. Reset Initialization
5.3. Configuration Phase
5.4. Link Reinitialization
5.5. SYSREF Sampling
5.6. Interrupt and Error Handling
5.7. Multi-Device Synchronization
5.8. Deterministic Latency
5.9. Pin Assignments
5.10. Dual Simplex Support
5.11. Analog Parameter Settings
5.12. Transceiver Toolkit
5.3. Configuration Phase
Before the hardware reset deasserts, if you want to make any changes to your GTS JESD204C IP configuration, you have to make the changes during the configuration phase.
The configuration phase is the only right phase to change the configuration because all configuration registers are quasi-static in nature and stable before the IP comes out of reset. The known exception to this rule is the SYSREF control registers.
If you want to make a change in the link configuration, such as disable interrupts, during mid-operation, you must always do a link re-initialization.