Device Design Guidelines: Agilex™ 5 FPGAs and SoCs

ID 813741
Date 4/01/2024
Public
Document Table of Contents

5.4.7. MSEL Configuration Mode Pins

Table 61.  MSEL Configuration Mode Pins Checklist
Number Done? Checklist Item
1   Connect the SDM pins with MSEL function to select the configuration scheme; do not leave them floating. Pull the pins high or low through pull-up/down resistors. Do not hardwire the pins directly to VCCIO_SDM or GND.

Select the configuration scheme by pulling the SDM pins with MSEL function high or low with external resistors. JTAG configuration is always available, regardless of the MSEL settings. The SDM pins with MSEL function are powered by the VCCIO_SDM power supply, and they have internal weak pull-up resistors.

During POR and reconfiguration, the SDM pins with MSEL function must be at LVTTL VIL and VIH levels to be considered as logic low and logic high, respectively. The SDM pins used for MSEL function also have other configuration functions, depending on the configuration schemes used. Do not hardwire the SDM pins with MSEL function to VCCIO_SDM or GND without pull-up or pull-down resistors.

Warning: AVSTx16 configuration scheme cannot be used in designs that include the HPS. HPS-EMIF and AVSTx16 signals are located in the same bank and, therefore, cannot be used simultaneously. The AVSTx8 mode uses dedicated SDM I/O pins, which can be used in designs that include the HPS.