Warning: Can't achieve requested Medium bandwidth type; current PLL requires a bandwidth value of between <frequency_value> Mhz and <frequency_value> Mhz -- achieved bandwidth of <frequency_value> MHz to <frequency_value> MHz

Description

The Quartus® II software will issue this warning message if the PLL settings are not able to achieve the required bandwidth when you manually set the PLL bandwidth (Low, Medium or High) ALTPLL Megafunction.

However, if the the PLL bandwidth option is set to 'Auto', this warning message will not appear. This is because the legality check is only triggered when specific non-AUTO settings are selected.