Datasheet

No
No
Yes
Start
(Reset)
Waitfor
ADCTrigger
StopCurrent
Conversion
First
Conversion
New
TriggerOccurred
orCMODE
Changed?
Has
InputChannel
Registerbeen
Rewritten?
Has
InputThreshold
Registerbeen
Rewritten?
Isthisthe
Last
Conversion?
Convert
NextChannel
Direct
Mode?
No
No
No
Yes
Yes
Yes
Yes
AMC7812
SBAS513E –JANUARY 2011–REVISED SEPTEMBER 2013 www.ti.com
Conversion Mode
Two types of ADC conversions are available: direct mode and auto mode. The CMODE (conversion mode) bit of
the AMC Configuration 0 Register specifies the conversion mode.
In direct mode, each analog channel within the specified group is converted a single time. After the last channel
is converted, the ADC goes into an idle state and waits for a new trigger.
Auto mode is a continuous operation. In auto mode, each analog channel within the specified group is converted
sequentially and repeatedly.
The flow chart of the ADC conversion sequence in Figure 82 shows the conversion process.
Figure 82. ADC Conversion Sequence
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