AN 738: Intel® Arria® 10 Device Design Guidelines

ID 683555
Date 6/30/2017
Public
Document Table of Contents

1.4.3.3. MSEL Configuration Mode Pins

Table 26.  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. Do not hardwire the pins to VCCIO_SDM or GND if they have other configuration functions based on the configuration scheme selected.

Select the configuration scheme by driving the Arria® 10 device MSEL pins high or low. JTAG configuration is always available, regardless of the MSEL pin selection. The MSEL pins are powered by the VCCPGM power supply of the residing bank. The MSEL[4..0] pins have 5 kΩ internal pull-down resistors that are always active.

During POR and reconfiguration, the MSEL pins must be at LVTTL VIL and VIH levels to be considered a logic low and logic high, respectively. To avoid problems with detecting an incorrect configuration scheme, hardwire the MSEL pins to VCCPGM or GND without pull-up or pull-down resistors. Do not drive the MSEL pins with a microprocessor or another device.