SPRUJ79 November 2024 F29H850TU
Each SOC can be configured to convert any of the ADC channels. This behavior is selected for SOCx by the ADCSOCxCTL.CHSEL register. Depending on the signal mode, the selection is different. For single-ended signal mode, the value in CHSEL selects a single pin as the input. For differential signal mode, the value in CHSEL selects an even-odd pin pair to be the positive and negative inputs. This is summarized in Table 24-7.
Input Mode | CHSEL | Input | |
---|---|---|---|
Single-Ended | 0 | ADCIN0 | |
1 | ADCIN1 | ||
2 | ADCIN2 | ||
3 | ADCIN3 | ||
4 | ADCIN4 | ||
5 | ADCIN5 | ||
6 | ADCIN6 | ||
7 | ADCIN7 | ||
8 | ADCIN8 | ||
9 | ADCIN9 | ||
10 | ADCIN10 | ||
11 | ADCIN11 | ||
12 | ADCIN12 | ||
13 | ADCIN13 | ||
14 | ADCIN14 | ||
15 | ADCIN15 | ||
16 | ADCIN16 | ||
17 | ADCIN17 | ||
18 | ADCIN18 | ||
19 | ADCIN19 | ||
20 | ADCIN20 | ||
21 | ADCIN21 | ||
22 | ADCIN22 | ||
23 | ADCIN23 | ||
24 | ADCIN24 | ||
25 | ADCIN25 | ||
26 | ADCIN26 | ||
27 | ADCIN27 | ||
28 | ADCIN28 | ||
29 | ADCIN29 | ||
30 | ADCIN30 | ||
31 | ADCIN31 | ||
CHSEL | Positive Input | Negative Input | |
Differential | 0 or 1 | ADCIN0 | ADCIN1 |
2 or 3 | ADCIN2 | ADCIN3 | |
4 or 5 | ADCIN4 | ADCIN5 | |
6 or 7 | ADCIN6 | ADCIN7 | |
8 or 9 | ADCIN8 | ADCIN9 | |
10 or 11 | ADCIN10 | ADCIN11 | |
12 or 13 | ADCIN12 | ADCIN13 | |
14 or 15 | ADCIN14 | ADCIN15 | |
16 or 17 | ADCIN16 | ADCIN17 | |
18 or 19 | ADCIN18 | ADCIN19 | |
20 or 21 | ADCIN20 | ADCIN21 | |
22 or 23 | ADCIN22 | ADCIN23 | |
24 or 25 | ADCIN24 | ADCIN25 | |
26 or 27 | ADCIN26 | ADCIN27 | |
28 or 29 | ADCIN28 | ADCIN29 | |
30 or 31 | ADCIN30 | ADCIN31 |