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1. Intel® Stratix® 10 I/O Overview
2. Intel® Stratix® 10 I/O Architecture and Features
3. Intel® Stratix® 10 I/O Design Considerations
4. Intel® Stratix® 10 I/O Implementation Guides
5. GPIO Intel® FPGA IP Reference
6. Intel® Stratix® 10 General Purpose I/O User Guide Archives
7. Document Revision History for Intel® Stratix® 10 General Purpose I/O User Guide
2.1. I/O Standards and Voltage Levels in Intel® Stratix® 10 Devices
2.2. I/O Element Structure in Intel® Stratix® 10 Devices
2.3. Programmable IOE Features in Intel® Stratix® 10 Devices
2.4. On-Chip I/O Termination in Intel® Stratix® 10 Devices
2.5. External I/O Termination for Intel® Stratix® 10 Devices
3.1. Guideline: VREF Sources and VREF Pins
3.2. Guideline: Observe Device Absolute Maximum Rating for 3.0 V Interfacing
3.3. Guideline: Voltage-Referenced and Non-Voltage Referenced I/O Standards
3.4. Guideline: Do Not Drive I/O Pins During Power Sequencing
3.5. Guideline: Intel® Stratix® 10 I/O Buffer During Power Up, Configuration, and Power Down
3.6. Guideline: Maximum DC Current Restrictions
3.7. Guideline: Use Only One Voltage for All 3 V I/O Banks
3.8. Guideline: I/O Standards Limitation for Intel® Stratix® 10 TX 400
3.9. Guideline: I/O Standards Limitation for Intel® Stratix® 10 GX 400 and SX 400
2.2. I/O Element Structure in Intel® Stratix® 10 Devices
The I/O elements (IOEs) in Intel® Stratix® 10 devices contain a bidirectional I/O buffer and I/O registers to support a complete embedded bidirectional single data rate (SDR) or double data rate (DDR) transfer.
The IOEs are located in I/O columns within the core fabric of the Intel® Stratix® 10 device.
Intel® Stratix® 10 SX devices also have IOEs for the HPS.
The GPIO IOE register consists of the DDR register, the half rate register, and the transmitter delay chains for input, output, and output enable (OE) paths:
- You can take data from the combinatorial path or the registered path.
- Only the core clock clocks the data.
- The half rate clock routed from the core clocks the half rate register.
- The full rate clock from the core clocks the full rate register.