JAJSH23D March 2019 – September 2021 MSP430FR2672 , MSP430FR2673 , MSP430FR2675 , MSP430FR2676
PRODUCTION DATA
The 12-bit ADC module supports fast 12-bit analog-to-digital conversions with single-ended input. The module implements a 12-bit SAR core, sample select control, reference generator and a conversion result buffer. A window comparator with a lower and upper limits allows CPU-independent result monitoring with three window comparator interrupt flags.
The ADC supports 12 external inputs and four internal inputs (see Table 9-19).
ADCINCHx | ADC CHANNELS | EXTERNAL PIN OUTPUT |
---|---|---|
0 | A0/Veref+ | P1.0 |
1 | A1/ | P1.1 |
2 | A2/Veref- | P1.2 |
3 | A3 | P1.3 |
4 | A4(1) | P1.4 |
5 | A5 | P1.5 |
6 | A6 | P1.6 |
7 | A7 | P1.7 |
8 | A8 | P4.3 |
9 | A9 | P4.4 |
10 | A10 | P5.3 |
11 | A11 | P5.4 |
12 | On-chip temperature sensor | N/A |
13 | Internal shared reference voltage (1.5, 2.0, or 2.5-V) | N/A |
14 | DVSS | N/A |
15 | DVCC | N/A |
The analog-to-digital conversion can be started by software or a hardware trigger. Table 9-20 shows the trigger sources that are available.
ADCSHSx | TRIGGER SOURCE | |
---|---|---|
BINARY | DECIMAL | |
00 | 0 | ADCSC bit (software trigger) |
01 | 1 | RTC event |
10 | 2 | TA1.1B |
11 | 3 | eCOMP0 COUT |