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ADC Registers
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SPNU563A–March 2018
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Analog To Digital Converter (ADC) Module
22.3.9 ADC Group1 Trigger Source Select Register (ADG1SRC)
ADC Group1 Trigger Source Select Register (ADG1SRC) is shown in Figure 22-31 and described in
Table 22-15.
Figure 22-31. ADC Group1 Trigger Source Select Register (ADG1SRC) [offset = 20h]
31 8
Reserved
R-0
7 5 4 3 2 0
Reserved G1_EDG_BOTH G1_EDG_SEL G1_SRC
R-0 R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 22-15. ADC Group1 Trigger Source Select Register (ADG1SRC) Field Descriptions
Bit Field Value Description
31-5 Reserved 0 Reads return 0. Writes have no effect.
4 GI_EDG_BOTH Group1 Trigger Edge Polarity Select. This bit configures the group1 to be triggered on both rising
and falling edge detected on the selected trigger source.
Any operation mode read/write:
0 The conversion is triggered only upon detecting an edge defined by the G1_EDG_SEL bit.
1 The conversion is triggered upon detecting either a rising or falling edge.
3 G1_EDG_SEL Group1 Trigger Edge Polarity Select. This bit determines the polarity of the transition on the
selected source that triggers the Group1 conversion.
Any operation mode read/write:
0 A high-to-low transition on the selected source will trigger the Group1 conversion.
1 A low-to-high transition on the selected source will trigger the Group1 conversion.
2-0 G1_SRC Group1 Trigger Source.
Any operation mode read/write:
0-7h The ADC module allows a trigger source to be selected for the Group1 from up to eight options.
These options are device-specific and the device specification must be referred to identify the
actual trigger sources.
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