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1. Intel® MAX® 10 I/O Overview
2. Intel® MAX® 10 I/O Architecture and Features
3. Intel® MAX® 10 I/O Design Considerations
4. Intel® MAX® 10 I/O Implementation Guides
5. GPIO Lite Intel® FPGA IP References
6. Intel® MAX® 10 General Purpose I/O User Guide Archives
7. Document Revision History for Intel® MAX® 10 General Purpose I/O User Guide
2.3.2.1. Programmable Open Drain
2.3.2.2. Programmable Bus Hold
2.3.2.3. Programmable Pull-Up Resistor
2.3.2.4. Programmable Current Strength
2.3.2.5. Programmable Output Slew Rate Control
2.3.2.6. Programmable IOE Delay
2.3.2.7. PCI Clamp Diode
2.3.2.8. Programmable Pre-Emphasis
2.3.2.9. Programmable Differential Output Voltage
2.3.2.10. Programmable Emulated Differential Output
2.3.2.11. Programmable Dynamic Power Down
3.1. Guidelines: VCCIO Range Considerations
3.2. Guidelines: Voltage-Referenced I/O Standards Restriction
3.3. Guidelines: Enable Clamp Diode for LVTTL/LVCMOS Input Buffers
3.4. Guidelines: Adhere to the LVDS I/O Restrictions Rules
3.5. Guidelines: I/O Restriction Rules
3.6. Guidelines: Placement Restrictions for 1.0 V I/O Pin
3.7. Guidelines: Analog-to-Digital Converter I/O Restriction
3.8. Guidelines: External Memory Interface I/O Restrictions
3.9. Guidelines: Dual-Purpose Configuration Pin
3.10. Guidelines: Clock and Data Input Signal for Intel® MAX® 10 E144 Package
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2.3.2. Programmable I/O Buffer Features
The Intel® MAX® 10 I/O buffers support a range of programmable features. These features increase the flexibility of I/O utilization and provide an alternative to reduce the usage of external discrete components such as a pull-up resistor and a diode.
Feature | Setting |
Condition | Assignment Name | Supported I/O Standards |
---|---|---|---|---|
Open Drain | On, Off (default) | To enable this feature, use the OPNDRN primitive. | — |
|
Bus-Hold | On, Off (default) | Disabled if you use the weak pull-up resistor feature. | Enable Bus-Hold Circuitry |
|
Pull-up Resistor | On, Off (default) | Disabled if you use the bus-hold feature. | Weak Pull-Up Resistor | |
Slew Rate Control | 0 (Slow), 1 (Medium), 2 (Fast). Default is 2. | Disabled if you use OCT. | Slew Rate |
|
PCI Clamp Diode | On (default for input pins), Off (default for output pins, except 3.0 V PCI) |
— | PCI I/O |
|
Pre-Emphasis | 0 (disabled), 1 (enabled). Default is 1. | — | Programmable Pre-emphasis |
|
Differential Output Voltage | 0 (low), 1 (medium), 2 (high). Default is 2. | — | Programmable Differential Output Voltage (VOD) |
Section Content
Programmable Open Drain
Programmable Bus Hold
Programmable Pull-Up Resistor
Programmable Current Strength
Programmable Output Slew Rate Control
Programmable IOE Delay
PCI Clamp Diode
Programmable Pre-Emphasis
Programmable Differential Output Voltage
Programmable Emulated Differential Output
Programmable Dynamic Power Down