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ADC Registers
895
SPNU563A–March 2018
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Analog To Digital Converter (ADC) Module
Table 22-13. ADC Group 2 Operating Mode Control Register (ADG2MODECR)
Field Descriptions (continued)
Field Value Description
G2_8BIT Group2 8-bit result mode.
This field is only applicable when the ADC module is configured to be in the 10-bit ADC module. This
field is reserved when the module is configured as a 12-bit ADC module.
This bit allows the Group2 conversion results to be read out in an 8-bit format. This bit only applies to
the “read from FIFO” mode. The lower 2 bits of the 10-bit conversion result are discarded and the
upper 8 bits are shifted right two places to form the 8-bit conversion result.
Any operation mode read/write:
0 The Group2 conversion result is read out as a 10-bit value in the “read from Group2 FIFO” mode.
1 The Group2 conversion result is read out as an 8-bit value in the “read from Group2 FIFO” mode.
G2_MODE Group2 Conversion Mode. This bit defines whether the input channels selected for conversion in the
Group2 are converted only once, or are continuously converted.
Any operation mode read/write:
0 The channels selected for conversion in the Group2 are converted only once.
1 The channels selected for conversion in the Group2 are converted continuously.
FRZ_G2 Group2 Freeze Enable. This bit allows a Group2 conversion sequence to be frozen if an Event Group
or a Group1 conversion is requested. The Group2 conversion is kept frozen while the Event Group or
Group1 conversion is active, and continues from where it was frozen once the Event Group or Group1
conversions are completed.
While the Group2 conversion is frozen, the G2_STOP status flag in the ADG2SR register indicates that
the Group2 conversions have stopped. This bit gets cleared when the Group2 conversions resume.
Any operation mode read/write:
0 Group2 conversions cannot be frozen. All the channels selected for conversion in the Group2 are
converted before the ADC can switch over to servicing any other conversion group.
1 Group2 conversions are frozen whenever there is a request for conversion from Event Group or
Group1.
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