MSP430Fr2033: Dynamic Switching ADC reference between internal ref(1.5v) and VCC(3.3v)

Part Number:MSP430Fr2033

I have a application like some adc channels i have read with ref voltage of VCC (ADCSREF_0) and some Adc channels i have to read with ref of  internal 1.5v (ADCSREF_1).

there will be a any issue if we change dynamically reference voltage very frequently(once in 100 msec).