SLAA890A December 2019 – August 2021 MSP430FR2000 , MSP430FR2032 , MSP430FR2033 , MSP430FR2100 , MSP430FR2110 , MSP430FR2111 , MSP430FR2153 , MSP430FR2155 , MSP430FR2310 , MSP430FR2311 , MSP430FR2353 , MSP430FR2355 , MSP430FR2422 , MSP430FR2433 , MSP430FR2475 , MSP430FR2476 , MSP430FR2512 , MSP430FR2522 , MSP430FR2532 , MSP430FR2533 , MSP430FR2632 , MSP430FR2633 , MSP430FR2672 , MSP430FR2673 , MSP430FR2675 , MSP430FR2676 , MSP430FR4131 , MSP430FR4132 , MSP430FR4133
In the MSP430FR413x and MSP430FR203x MCUs, the ADC pin selection is set in the SYSCFG2 register. For other FR4xx MCUs, the ADC pin selection is set in the PxSEL0 and PxSEL1 registers. Because there is only one pair of power supply pins (DVCC and DVSS) in FR4xx MCUs, to achieve good ADC performance, board design should avoid system noise: