Stratix® V Device Handbook: Volume 1: Device Interfaces and Integration
ID
683665
Date
10/18/2023
Public
1. Logic Array Blocks and Adaptive Logic Modules in Stratix V Devices
2. Embedded Memory Blocks in Stratix V Devices
3. Variable Precision DSP Blocks in Stratix V Devices
4. Clock Networks and PLLs in Stratix V Devices
5. I/O Features in Stratix V Devices
6. High-Speed Differential I/O Interfaces and DPA in Stratix® V Devices
7. External Memory Interfaces in Stratix V Devices
8. Configuration, Design Security, and Remote System Upgrades in Stratix V Devices
9. SEU Mitigation for Stratix V Devices
10. JTAG Boundary-Scan Testing in Stratix V Devices
11. Power Management in Stratix V Devices
2.1. Types of Embedded Memory
2.2. Embedded Memory Design Guidelines for Stratix V Devices
2.3. Embedded Memory Features
2.4. Embedded Memory Modes
2.5. Embedded Memory Clocking Modes
2.6. Parity Bit in Memory Blocks
2.7. Byte Enable in Embedded Memory Blocks
2.8. Memory Blocks Packed Mode Support
2.9. Memory Blocks Address Clock Enable Support
2.10. Memory Blocks Asynchronous Clear
2.11. Memory Blocks Error Correction Code Support
2.12. Embedded Memory Blocks in Stratix V Devices Revision History
4.2.1. PLL Physical Counters in Stratix V Devices
4.2.2. PLL Locations in Stratix® V Devices
4.2.3. PLL Migration Guidelines
4.2.4. Fractional PLL Architecture
4.2.5. PLL Cascading
4.2.6. PLL External Clock I/O Pins
4.2.7. PLL Control Signals
4.2.8. Clock Feedback Modes
4.2.9. Clock Multiplication and Division
4.2.10. Programmable Phase Shift
4.2.11. Programmable Duty Cycle
4.2.12. Clock Switchover
4.2.13. PLL Reconfiguration and Dynamic Phase Shift
5.1. I/O Standards Support in Stratix V Devices
5.2. I/O Design Guidelines for Stratix V Devices
5.3. I/O Banks in Stratix® V Devices
5.4. I/O Banks Groups in Stratix V Devices
5.5. I/O Element Structure in Stratix V Devices
5.6. Programmable IOE Features in Stratix® V Devices
5.7. On-Chip I/O Termination in Stratix® V Devices
5.8. I/O Termination Schemes for Stratix® V Devices
5.9. I/O Features in Stratix V Devices Revision History
5.6.1. Programmable Current Strength
5.6.2. Programmable Output Slew Rate Control
5.6.3. Programmable IOE Delay
5.6.4. Programmable Output Buffer Delay
5.6.5. Programmable Pre-Emphasis
5.6.6. Programmable Differential Output Voltage
5.6.7. Open-Drain Output
5.6.8. Bus-Hold Circuitry
5.6.9. Pull-up Resistor
5.7.1. RS OCT without Calibration in Stratix® V Devices
5.7.2. RS OCT with Calibration in Stratix® V Devices
5.7.3. RT OCT with Calibration in Stratix® V Devices
5.7.4. Dynamic OCT in Stratix® V Devices
5.7.5. LVDS Input RD OCT in Stratix V Devices
5.7.6. OCT Calibration Block in Stratix V Devices
5.7.7. OCT Calibration in Power-Up Mode
5.7.8. OCT Calibration in User Mode
6.1. Dedicated High-Speed Circuitries in Stratix® V Devices
6.2. High-Speed I/O Design Guidelines for Stratix® V Devices
6.3. Differential Transmitter in Stratix V Devices
6.4. Differential Receiver in Stratix V Devices
6.5. Source-Synchronous Timing Budget
6.6. High-Speed Differential I/O Interfaces and DPA in Stratix® V Devices Revision History
7.3.1. UniPHY IP
7.3.2. External Memory Interface Datapath
7.3.3. DQS Phase-Shift Circuitry
7.3.4. Phase Offset Control
7.3.5. PHY Clock (PHYCLK) Networks
7.3.6. DQS Logic Block
7.3.7. Leveling Circuitry
7.3.8. Dynamic OCT Control
7.3.9. IOE Registers
7.3.10. Delay Chains
7.3.11. I/O and DQS Configuration Blocks
8.1. Enhanced Configuration and Configuration via Protocol
8.2. MSEL Pin Settings
8.3. Configuration Sequence
8.4. Configuration Timing Waveforms
8.5. Device Configuration Pins
8.6. Fast Passive Parallel Configuration
8.7. Active Serial Configuration
8.8. Using EPCS and EPCQ Devices
8.9. Passive Serial Configuration
8.10. JTAG Configuration
8.11. Configuration Data Compression
8.12. Remote System Upgrades
8.13. Design Security
8.14. Configuration, Design Security, and Remote System Upgrades in Stratix V Devices Revision History
10.1. BST Operation Control
10.2. I/O Voltage for JTAG Operation
10.3. Performing BST
10.4. Enabling and Disabling IEEE Std. 1149.1 BST Circuitry
10.5. Guidelines for IEEE Std. 1149.1 Boundary-Scan Testing
10.6. IEEE Std. 1149.1 Boundary-Scan Register
10.7. IEEE Std. 1149.6 Boundary-Scan Register
10.8. JTAG Boundary-Scan Testing inStratix V Devices Revision History
5.6.7. Open-Drain Output
The optional open-drain output for each I/O pin is equivalent to an open collector output. If it is configured as an open drain, the logic value of the output is either high-Z or logic low.
You can attach several open-drain output to a wire. This connection type is like a logical OR function and is commonly called an active-low wired-OR circuit. If at least one of the outputs is in logic 0 state (active), the circuit sinks the current and brings the line to low voltage.
You can use open-drain output if you are connecting multiple devices to a bus. For example, you can use the open-drain output for system-level control signals that can be asserted by any device or as an interrupt.
You can enable the open-drain output assignment using one these methods:
- Design the tristate buffer using OPNDRN primitive.
- Turn on the Auto Open-Drain Pins option in the Intel® Quartus® Prime software.