Agilex™ 7 General-Purpose I/O User Guide: M-Series

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ID 772138
Date 8/04/2025
Public
Document Table of Contents
Document Table of Contents x
1. Agilex™ 7 M-Series General-Purpose I/O Overview 2. Agilex™ 7 M-Series GPIO-B Banks 3. Agilex™ 7 M-Series HPS I/O Banks 4. Agilex™ 7 M-Series SDM I/O Banks 5. Agilex™ 7 M-Series I/O Troubleshooting Guidelines 6. GPIO FPGA IP 7. Programmable I/O Features Description 8. Documentation Related to the Agilex™ 7 General-Purpose I/O User Guide: M-Series 9. Agilex™ 7 General-Purpose I/O User Guide: M-Series Archives 10. Document Revision History for the Agilex™ 7 General-Purpose I/O User Guide: M-Series
1. Agilex™ 7 M-Series General-Purpose I/O Overview x
1.1. Package Selection and I/O Vertical Migration Support 1.2. Types of I/O Banks
2. Agilex™ 7 M-Series GPIO-B Banks x
2.1. GPIO-B Bank Overview 2.2. GPIO-B Features 2.3. GPIO-B Implementation Guide 2.4. GPIO-B Termination 2.5. GPIO-B Design Guidelines 2.6. GPIO-B Simulation
2.1. GPIO-B Bank Overview x
2.1.1. GPIO-B Bank Structure 2.1.2. GPIO-B Buffers and Registers
2.2. GPIO-B Features x
2.2.1. Supported I/O Standards for GPIO-B Banks 2.2.2. GPIO-B Buffer Behavior 2.2.3. Programmable I/O Element Features for the GPIO-B Bank
2.2.3. Programmable I/O Element Features for the GPIO-B Bank x
2.2.3.1. Guidelines: Programmable Output Slew Rate Control 2.2.3.2. Guidelines: Programmable Pull-Up Resistor 2.2.3.3. Guidelines: Programmable De-Emphasis
2.3. GPIO-B Implementation Guide x
2.3.1. I/O Assignments with the Quartus® Prime Assignment Editor 2.3.2. Assigning Pin I/O Standards in the Quartus® Prime Pin Planner
2.3.1. I/O Assignments with the Quartus® Prime Assignment Editor x
2.3.1.1. Assigning Pin I/O Standards in the Quartus® Prime Assignment Editor 2.3.1.2. Assigning Programmable IOE Features in the Quartus® Prime Assignment Editor 2.3.1.3. GPIO-B Programmable IOE Features Assignment Names and Settings
2.4. GPIO-B Termination x
2.4.1. Single-Ended I/O Termination in M-Series Devices 2.4.2. True Differential Signaling I/O Termination in M-Series Devices
2.4.1. Single-Ended I/O Termination in M-Series Devices x
2.4.1.1. Single-Ended I/O Standards On-Chip Termination 2.4.1.2. OCT Calibration Block 2.4.1.3. Single-Ended I/O Standards External Termination 2.4.1.4. Single-Ended I/O Termination Implementation Guide
2.4.1.1. Single-Ended I/O Standards On-Chip Termination x
2.4.1.1.1. RS OCT 2.4.1.1.2. RT OCT 2.4.1.1.3. Dynamic OCT
2.4.1.4. Single-Ended I/O Termination Implementation Guide x
2.4.1.4.1. Configuring OCT Using the Assignment Editor 2.4.1.4.2. OCT Features Assignment Names and Settings
2.4.2. True Differential Signaling I/O Termination in M-Series Devices x
2.4.2.1. True Differential Signaling I/O Standard On-Chip Termination 2.4.2.2. True Differential Signaling I/O Standard External Termination
2.4.2.1. True Differential Signaling I/O Standard On-Chip Termination x
2.4.2.1.1. Configuring Differential Input RD OCT Using the Assignment Editor 2.4.2.1.2. Guidelines: Differential Input RD OCT
2.5. GPIO-B Design Guidelines x
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. Clock Restrictions for GPIO Interfaces 2.5.12. SDM Shared I/O Requirements 2.5.13. Unused Pins 2.5.14. VCCIO_PIO Supply for Unused GPIO-B Banks 2.5.15. GPIO-B Pins During Power Sequencing 2.5.16. Drive Strength Requirement for GPIO-B Input Pins 2.5.17. Maximum DC Current Restrictions 2.5.18. 1.05 V, 1.1 V, or 1.2 V I/O Interface Voltage Level Compatibility 2.5.19. Connection to True Differential Signaling Input Buffers During Device Reconfiguration 2.5.20. LVSTL700 I/O Standards Differential Pin Pair Requirements 2.5.21. Implementing a Pseudo Open Drain 2.5.22. Allowed Duration for Using RT OCT 2.5.23. Single-Ended Strobe Signal Differential Pin Pair Restriction 2.5.24. Implementing SLVS-400 Standard at 1.1 V VCCIO_PIO Sub-bank
2.6. GPIO-B Simulation x
2.6.1. IBIS Models—GPIO-B Support 2.6.2. IBIS-AMI Models 2.6.3. HSPICE* Models 2.6.4. Net Length Reports
3. Agilex™ 7 M-Series HPS I/O Banks x
3.1. HPS I/O Bank Overview 3.2. HPS I/O Features 3.3. HPS I/O Implementation Guide 3.4. HPS I/O Design Guidelines 3.5. HPS I/O Simulation
3.2. HPS I/O Features x
3.2.1. Supported I/O Standards for HPS I/O Banks 3.2.2. Programmable I/O Element Features for the HPS I/O Bank 3.2.3. HPS I/O Buffer Behavior
3.3. HPS I/O Implementation Guide x
3.3.1. Configuring Open Drain Feature for the HPS I/O 3.3.2. I/O Assignments with the Quartus® Prime Assignment Editor 3.3.3. Assigning Pin I/O Standards in the Quartus® Prime Pin Planner
3.3.2. I/O Assignments with the Quartus® Prime Assignment Editor x
3.3.2.1. Assigning Programmable IOE Features in the Quartus® Prime Assignment Editor 3.3.2.2. HPS I/O Programmable IOE Features Assignment Names and Settings
3.4. HPS I/O Design Guidelines x
3.4.1. HPS I/O Pins During Power Sequencing 3.4.2. HPS Shared I/O Requirements
3.5. HPS I/O Simulation x
3.5.1. IBIS Models—HPS I/O Support 3.5.2. Net Length Reports
4. Agilex™ 7 M-Series SDM I/O Banks x
4.1. SDM I/O Bank Overview 4.2. SDM I/O Features 4.3. SDM I/O Design Guidelines 4.4. SDM I/O Simulation
4.2. SDM I/O Features x
4.2.1. Supported I/O Standards for SDM I/O Banks 4.2.2. SDM I/O Buffer Behavior 4.2.3. I/O Standards and Features for Configuration Pins
4.3. SDM I/O Design Guidelines x
4.3.1. SDM I/O Pins During Power Sequencing 4.3.2. Avalon® Streaming Interface Dedicated Configuration Pins
4.4. SDM I/O Simulation x
4.4.1. IBIS Models—SDM I/O Support 4.4.2. Net Length Reports
6. GPIO FPGA IP x
6.1. Release Information for GPIO FPGA IP 6.2. Generating the GPIO FPGA IP 6.3. GPIO FPGA IP Parameter Settings 6.4. GPIO FPGA IP Interface Signals 6.5. GPIO FPGA IP Architecture 6.6. Verifying Resource Utilization and Design Performance 6.7. GPIO FPGA IP Timing 6.8. GPIO FPGA IP Design Examples
6.2. Generating the GPIO FPGA IP x
6.2.1. Altera® FPGA IP Generation Output
6.3. GPIO FPGA IP Parameter Settings x
6.3.1. Guideline: Swap datain_h and datain_l Ports in Migrated IP
6.4. GPIO FPGA IP Interface Signals x
6.4.1. Shared Signals 6.4.2. Data Bit-Order for Data Interface 6.4.3. Input and Output Bus High and Low Bits 6.4.4. Data Interface Signals and Corresponding Clocks
6.5. GPIO FPGA IP Architecture x
6.5.1. GPIO FPGA IP Data Paths 6.5.2. Register Packing
6.5.1. GPIO FPGA IP Data Paths x
6.5.1.1. Input Path 6.5.1.2. Output and Output Enable Paths
6.7. GPIO FPGA IP Timing x
6.7.1. Timing Components 6.7.2. Delay Elements 6.7.3. Timing Analysis 6.7.4. Timing Closure Guidelines
6.7.3. Timing Analysis x
6.7.3.1. Single Data Rate Input Register 6.7.3.2. DDIO Input Register 6.7.3.3. Single Data Rate Output Register 6.7.3.4. DDIO Output Register
6.8. GPIO FPGA IP Design Examples x
6.8.1. GPIO FPGA IP Synthesizable Quartus® Prime Design Example 6.8.2. GPIO FPGA IP Simulation Design Example
7. Programmable I/O Features Description x
7.1. Programmable Pre-Emphasis 7.2. Programmable De-Emphasis 7.3. Programmable Differential Output Voltage 7.4. Continuous Time Linear Equalization
1. Agilex™ 7 M-Series General-Purpose I/O Overview
2. Agilex™ 7 M-Series GPIO-B Banks
3. Agilex™ 7 M-Series HPS I/O Banks
4. Agilex™ 7 M-Series SDM I/O Banks
5. Agilex™ 7 M-Series I/O Troubleshooting Guidelines
6. GPIO FPGA IP
7. Programmable I/O Features Description
8. Documentation Related to the Agilex™ 7 General-Purpose I/O User Guide: M-Series
9. Agilex™ 7 General-Purpose I/O User Guide: M-Series Archives
10. Document Revision History for the Agilex™ 7 General-Purpose I/O User Guide: M-Series

4.2.3. I/O Standards and Features for Configuration Pins

The SDM pins have different I/O standards and features in different configuration schemes. You can assign the unused SDM pins for other functions in the Quartus® Prime software.
Table 35.   Agilex™ 7 AS ×4 Configuration Scheme—Dedicated Configuration Pins
Pin Function SDM I/O Direction I/O Standard Schmitt Trigger/TTL Input Weak Pull-Up/Pull-Down Drive Strength Open Drain Slew Rate
AS_DATA1 SDM_IO1 Bidirectional 1.8 V LVCMOS Schmitt Trigger Disable 8 mA Disable Fast
AS_CLK SDM_IO2 Output 1.8 V LVCMOS — — 8 mA Disable Fast
AS_DATA2 SDM_IO3 Bidirectional 1.8 V LVCMOS Schmitt Trigger Disable 8 mA Disable Fast
AS_DATA0 SDM_IO4 Bidirectional 1.8 V LVCMOS Schmitt Trigger Disable 8 mA Disable Fast
AS_nCSO0 SDM_IO5 Output 1.8 V LVCMOS — — 8 mA Disable Fast
AS_DATA3 SDM_IO6 Bidirectional 1.8 V LVCMOS Schmitt Trigger Disable 8 mA Disable Fast
AS_nCSO2 SDM_IO7 Output 1.8 V LVCMOS — — 8 mA Disable Fast
AS_nCSO3 SDM_IO8 Output 1.8 V LVCMOS — — 8 mA Disable Fast
AS_nCSO1 SDM_IO9 Output 1.8 V LVCMOS — — 8 mA Disable Fast
AS_nRST SDM_IO15 Output 1.8 V LVCMOS — — 8 mA Disable Fast
Table 36.   Agilex™ 7 AS ×4 Configuration Scheme—Unused Configuration PinsFor the unused configuration pins, the drive strength, open drain, and slew rate settings are not applicable.
SDM I/O Direction I/O Standard Schmitt Trigger/TTL Input Weak Pull-Up/Pull-Down
SDM_IO0 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-down with 20 kΩ resistor
SDM_IO10 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor
SDM_IO11 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor
SDM_IO12 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor
SDM_IO13 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor
SDM_IO14 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor
SDM_IO16 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-down with 20 kΩ resistor
Table 37.   Agilex™ 7 Avalon® Streaming Interface ×8 Configuration Scheme—Dedicated Configuration Pins
Pin Function SDM I/O Direction I/O Standard Schmitt Trigger/TTL Input Weak Pull-Up/Pull-Down Drive Strength Open Drain Slew Rate
AVSTx8_DATA2 SDM_IO1 Input 1.8 V LVCMOS Schmitt Trigger Disable — — —
AVSTx8_DATA0 SDM_IO2 Input 1.8 V LVCMOS Schmitt Trigger Disable — — —
AVSTx8_DATA3 SDM_IO3 Input 1.8 V LVCMOS Schmitt Trigger Disable — — —
AVSTx8_DATA1 SDM_IO4 Input 1.8 V LVCMOS Schmitt Trigger Disable — — —
AVSTx8_DATA4 SDM_IO6 Input 1.8 V LVCMOS Schmitt Trigger Disable — — —
AVSTx8_READY SDM_IO8 Output 1.8 V LVCMOS — — 8 mA Disable Fast
AVSTx8_DATA7 SDM_IO10 Input 1.8 V LVCMOS Schmitt Trigger Disable — — —
AVSTx8_VALID SDM_IO11 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-down with 20 kΩ resistor — — —
AVSTx8_DATA5 SDM_IO13 Input 1.8 V LVCMOS Schmitt Trigger Disable — — —
AVSTx8_CLK SDM_IO14 Input 1.8 V LVCMOS Schmitt Trigger Disable — — —
AVSTx8_DATA6 SDM_IO15 Input 1.8 V LVCMOS Schmitt Trigger Disable — — —
Table 38.   Agilex™ 7 Avalon® Streaming Interface ×8 Configuration Scheme—Unused Configuration PinsFor the unused configuration pins, the drive strength, open drain, and slew rate settings are not applicable.
SDM I/O Direction I/O Standard Schmitt Trigger/TTL Input Weak Pull-Up/Pull-Down
SDM_IO0 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-down with 20 kΩ resistor
SDM_IO5 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor
SDM_IO7 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor
SDM_IO9 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor
SDM_IO12 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor
SDM_IO16 Input 1.8 V LVCMOS Schmitt Trigger Weak pull-down with 20 kΩ resistor
Table 39.   Agilex™ 7 Avalon® Streaming Interface ×16 or ×32 Configuration Scheme—Dedicated Configuration PinsFor all pin functions in this table:
  • The I/O location is the SDM shared GPIO bank.
  • The weak pull-up or pull-down, and open drain options are not applicable.
Pin Function Direction I/O Standard Drive Strength Slew Rate
AVST_CLK Input

1.2 V LVCMOS

 — —
AVST_READY Output

1.2 V LVCMOS

Series 40 Ω OCT without calibration

Medium
AVST_VALID Input

1.2 V LVCMOS

 — —
AVST_DATA Input

1.2 V LVCMOS

 — —
Table 40.   Agilex™ 7 Optional Configuration PinsThe SDM I/O for each pin function in this table is as assigned in the Quartus® Prime configuration pins option.
Pin Function Direction I/O Standard

Schmitt Trigger/

TTL Input

 Weak Pull-Up / Pull-Down Drive Strength Open Drain Slew Rate
PWRMGT_SCL Bidirectional 1.8V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor 2 mA Enable Slow
PWRMGT_SDA Bidirectional 1.8V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor 2 mA Enable Slow
PWRMGT_ALERT Output 1.8V LVCMOS — — 2 mA Enable Slow
CONF_DONE Output 1.8V LVCMOS — — 8 mA Disable Fast
INIT_DONE Output 1.8V LVCMOS — — 8 mA Disable Fast
CvP_CONFDONE Output 1.8V LVCMOS — — 8 mA Disable Fast
SEU_ERROR Output 1.8V LVCMOS — — 8 mA Disable Fast
HPS_COLD_nRESET Bidirectional 1.8V LVCMOS Schmitt Trigger Weak pull-up with 20 kΩ resistor 2 mA Enable Fast
Direct to factory image Input 1.8V LVCMOS Schmitt Trigger Weak pull-down with 20 kΩ resistor — — —
nCATTRIP Output 1.8V LVCMOS — — 2 mA Disable Slow
TAMPERDETECTION Output 1.8V LVCMOS — — 8 mA Disable Fast
TAMPERRESPONSESTATUS Output 1.8V LVCMOS — — 8 mA Disable Fast
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