Visible to Intel only — GUID: obg1488319329713
Ixiasoft
Visible to Intel only — GUID: obg1488319329713
Ixiasoft
MSEL Configuration Mode Pins
Number | Done? | Checklist Item |
---|---|---|
1 | Connect the MSEL pins to select the configuration scheme; do not leave them floating. |
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[2..0] pins have 25 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.