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1. Intel Agilex® 7 M-Series General-Purpose I/O Overview
2. Intel Agilex® 7 M-Series GPIO-B Banks
3. Intel Agilex® 7 M-Series HPS I/O Banks
4. Intel Agilex® 7 M-Series SDM I/O Banks
5. Intel Agilex® 7 M-Series I/O Troubleshooting Guidelines
6. GPIO Intel® FPGA IP
7. Programmable I/O Features Description
8. Documentation Related to the Intel Agilex® 7 General-Purpose I/O User Guide: M-Series
9. Document Revision History for the Intel Agilex® 7 General-Purpose I/O User Guide: M-Series
2.5.1. I/O Standard Placement Restrictions for True Differential I/Os
2.5.2. Placement Restrictions for True Differential and Single-Ended I/O Standards in the Same or Adjacent GPIO-B Bank
2.5.3. VREF Sources and Input Standards Grouping
2.5.4. GPIO-B Pin Restrictions for External Memory Interfaces
2.5.5. RZQ Pin Requirement
2.5.6. I/O Standards Implementation Based on VCCIO_PIO Voltages
2.5.7. I/O Standard Selection and I/O Bank Supply Compatibility Check
2.5.8. Simultaneous Switching Noise
2.5.9. HPS Shared I/O Requirements
2.5.10. Clocking Requirements
2.5.11. SDM Shared I/O Requirements
2.5.12. Unused Pins
2.5.13. VCCIO_PIO Supply for Unused GPIO-B Banks
2.5.14. GPIO-B Pins During Power Sequencing
2.5.15. Drive Strength Requirement for GPIO-B Input Pins
2.5.16. Maximum DC Current Restrictions
2.5.17. 1.05 V, 1.1 V, or 1.2 V I/O Interface Voltage Level Compatibility
2.5.18. Connection to True Differential Signaling Input Buffers During Device Reconfiguration
2.5.19. LVSTL700 I/O Standards Differential Pin Pair Requirements
2.5.20. Implementing a Pseudo Open Drain
2.5.21. Allowed Duration for Using RT OCT
2.5.22. Single-Ended Strobe Signal Differential Pin Pair Restriction
6.1. Release Information for GPIO Intel® FPGA IP
6.2. Generating the GPIO Intel® FPGA IP
6.3. GPIO Intel® FPGA IP Parameter Settings
6.4. GPIO Intel® FPGA IP Interface Signals
6.5. GPIO Intel® FPGA IP Architecture
6.6. Verifying Resource Utilization and Design Performance
6.7. GPIO Intel® FPGA IP Timing
6.8. GPIO Intel® FPGA IP Design Examples
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6.5.2. Register Packing
The GPIO IP allows you to pack registers into the periphery to save area and resource utilization.
You can configure the DDIO on the input and output path as a flip flop by adding .qsf assignments.
Path | .qsf Assignment |
---|---|
Input register packing | set_instance_assignment -name FAST_INPUT_REGISTER ON -to <path to register> |
Output register packing | set_instance_assignment -name FAST_OUTPUT_REGISTER ON -to <path to register> |
Output enable register packing | set_instance_assignment -name FAST_OUTPUT_ENABLE_REGISTER ON -to <path to register> |
Note: The .qsf assignments do not guarantee register packing. However, these assignments enable the Fitter to find a legal placement. Otherwise, the Fitter keeps the flip flop in the core.