51.6.10 Sample-and-Hold Modes

The AFE can be configured in either single Sample-and-Hold mode (AFEC_SHMR.DUALx = 0) or dual Sample-and-Hold mode (AFEC_SHMR.DUALx = 1). By default, after a reset, the AFE is in single Sample-and-Hold mode.

The AFEC can apply a different mode on each channel.

The same inputs are used in single Sample-and-Hold mode or in dual Sample-and-Hold mode. Single-ended/Differential mode and single/dual Sample-and-Hold mode can be combined. See the following tables.

Table 51-3. Input Pins and Channel Numbers In Dual Sample-and-Hold Mode
Single-Ended Input Pins Differential Input Pins Channel Numbers
AFE_AD0 & AFE_AD6 AFE_AD0-AD1 & AFE_AD6–AFE_AD7 CH0
AFE_AD1 & AFE_AD7 – CH1
... ... ...
AFE_AD4 & AFE_AD10 AFE_AD4–AFE_AD5 & AFE_AD10–AFE_AD11 CH4
AFE_AD5 & AFE_AD11 – CH5
Note:
  1. AFE0_AD11 is not an actual pin but is connected to a temperature sensor.
Table 51-4. Input Pins and Channel Numbers in Single Sample-and-Hold Mode
Single-Ended Input Pins Differential Input Pins Channel Numbers
AFE_AD0 AFE_AD0-AFE_AD1 CH0
AFE_AD1 – CH1
... ... ...
AFE_AD10 AFE_AD10–AFE_AD11 CH10
AFE_AD11 – CH11
Note:
  1. AFE0_AD11 is not an actual pin but is connected to a temperature sensor.