SPRUIN7C March 2020 – March 2024 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1
Pin Name | Pins/Package | ADC | Comparator Subsystem (Mux) | AIO Input | ||||||
---|---|---|---|---|---|---|---|---|---|---|
80 QFP | 64 QFP | 48 QFN | A | C | High Positive | High Negative | Low Positive | Low Negative | ||
VREFHI | 20 | 16 | 12 | |||||||
VREFLO | 21 | 17 | 13 | A13 | C13 | |||||
Analog Group 1 | CMP1 | |||||||||
A6 | 10 | 6 | 4(1) | A6 | - | CMP1 (HPMXSEL=2) | CMP1 (LPMXSEL=2) | AIO228 | ||
A2/C9 | 13 | 9 | 6 | A2 | C9 | CMP1 (HPMXSEL=0) | CMP1 (LPMXSEL=0) | AIO224 | ||
A15/C7 | 14 | 10 | 7 | A15 | C7 | CMP1 (HPMXSEL=3) | CMP1 (HNMXSEL=0) | CMP1 (LPMXSEL=3) | CMP1 (LNMXSEL=0) | AIO233 |
A11/C0 | 16 | 12 | 8 | A11 | C0 | CMP1 (HPMXSEL=1) | CMP1 (HNMXSEL=1) | CMP1 (LPMXSEL=1) | CMP1 (LNMXSEL=1) | AIO237 |
A1 | 18 | 14 | 10 | A1 | - | CMP1 (HPMXSEL=4) | CMP1 (LPMXSEL=4) | AIO232 | ||
Analog Group 2 | CMP2 | |||||||||
A10/C10 | 29 | 25 | 21 | A10 | C10 | CMP2 (HPMXSEL=3) | CMP2 (HNMXSEL=0) | CMP2 (LPMXSEL=3) | CMP2 (LNMXSEL=0) | AIO230 |
Analog Group 3 | CMP3 | |||||||||
C6 | 11 | 7 | 4(1) | - | C6 | CMP3 (HPMXSEL=0) | CMP3 (LPMXSEL=0) | AIO226 | ||
A3/C5/VDAC(2) | 12 | 8 | 5 | A3 | C5 | CMP3 (HPMXSEL=3) | CMP3 (HNMXSEL=0) | CMP3 (LPMXSEL=3) | CMP3 (LNMXSEL=0) | AIO242 |
A14/C4 | 15 | 11 | - | A14 | C4 | CMP3 (HPMXSEL=4) | CMP3 (LPMXSEL=4) | AIO239 | ||
A5/C2 | 17 | 13 | 9 | A5 | C2 | CMP3 (HPMXSEL=1) | CMP3 (HNMXSEL=1) | CMP3 (LPMXSEL=1) | CMP3 (LNMXSEL=1) | AIO244 |
A0/C15 | 19 | 15 | 11 | A0 | C15 | CMP3 (HPMXSEL=2) | CMP3 (LPMXSEL=2) | AIO231 | ||
Analog Group 4 | CMP4 | |||||||||
A7/C3 | 23 | 19 | 15 | A7 | C3 | CMP4 (HPMXSEL=1) | CMP4 (HNMXSEL=1) | CMP4 (LPMXSEL=1) | CMP4 (LNMXSEL=1) | AIO245 |
Combined Analog Group 2/4 | CMP2/4 | |||||||||
A12/C1 | 22 | 18 | 14 | A12 | C1 | CMP2 (HPMXSEL=1) CMP4 (HPMXSEL=2) | CMP2 (HNMXSEL=1) | CMP2 (LPMXSEL=1) CMP4 (LPMXSEL=2) | CMP2 (LNMXSEL=1) | AIO238 |
A8/C11 | 24 | 20 | 16 | A8 | C11 | CMP2 (HPMXSEL=4) CMP4 (HPMXSEL=4) | CMP2 (LPMXSEL=4) CMP4 (LPMXSEL=4) | AIO241 | ||
A4/C14 | 27 | 23 | 19 | A4 | C14 | CMP2 (HPMXSEL=0) CMP4 (HPMXSEL=3) | CMP4 (HNMXSEL=0) | CMP2 (LPMXSEL=0) CMP4 (LPMXSEL=3) | CMP4 (LNMXSEL=0) | AIO225 |
A9/C8 | 28 | 24 | 20 | A9 | C8 | CMP2 (HPMXSEL=2) CMP4 (HPMXSEL=0) | CMP2 (LPMXSEL=2) CMP4 (LPMXSEL=0) | AIO227 | ||
Other Analog | ||||||||||
TempSensor(3) | - | - | - | - | C12 |
Signal Name | Description |
---|---|
AIOx | Digital input on ADC pin |
Ax | ADC A Input |
Cx | ADC C Input |
CMPx_HNy | Comparator subsystem high comparator negative input |
CMPx_HPy | Comparator subsystem high comparator positive input |
CMPx_LNy | Comparator subsystem low comparator negative input |
CMPx_LPy | Comparator subsystem low comparator positive input |
TempSensor | Internal temperature sensor |
VDAC | Optional external reference voltage for on-chip COMPDACs. There is a 100pF capacitor to VSSA on this pin whether used for ADC input or COMPDAC reference that cannot be disabled. If this pin is being used as a reference for the on-chip COMPDACs, place at least a 1μF capacitor on this pin. |
Module | Reference Option | Configured Where? | Register | Driverlib Function | Notes |
---|---|---|---|---|---|
ADC | Internal or External | Analog System | AnalogSubsysRegs. ANAREFCTL.bit. ANAREFxSEL | ADC_setVREF | Both options require use of the VREFHI pin. |
3.3V or 2.5V Internal Reference Range | Analog System | AnalogSubsysRegs. ANAREFCTL.bit. ANAREFx2P5SEL | ADC_setVREF | Only applicable when using internal reference mode. | |
CMPSS DACs | VDDA or VDAC | CMPSS Module | CmpssxRegs.COMDACCTL.bit.SELREF | CMPSS_configDAC |