Download ADC 320F Specifications

Contents
Preface ............................................................................................................................... 7
1
Analog-to-Digital Converter (ADC)
Features ............................................................................................................ 10
1.2
Autoconversion Sequencer Principle of Operation
1.3
...........................................................
1.2.1 Sequential Sampling Mode .............................................................................
1.2.2 Simultaneous Sampling Mode ..........................................................................
Uninterrupted Autosequenced Mode ...........................................................................
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11
12
13
14
19
1.3.1
Sequencer Start/Stop Mode (Sequencer Start/Stop Operation With Multiple
Time-Sequenced Triggers) ............................................................................. 21
1.3.2
Simultaneous Sampling Mode .......................................................................... 23
...............................................................................
1.3.4 Interrupt Operation During Sequenced Conversions ...............................................
ADC Clock Prescaler .............................................................................................
1.4.1 ADC-module Clock and Sample Rate .................................................................
Low-power Modes .................................................................................................
Power-up Sequence ..............................................................................................
Sequencer Override Feature ....................................................................................
ADC Calibration ...................................................................................................
1.8.1 ADC_Cal Assembly Routine Method ..................................................................
1.8.2 Pointer to-Function Method .............................................................................
Internal/External Reference Voltage Selection ................................................................
Offset Error Correction............................................................................................
ADC to DMA Interface ............................................................................................
1.3.3
2
................................................................................ 9
1.1
Input Trigger Description
23
24
26
26
26
27
27
28
29
29
30
31
32
......................................................................................................... 33
........................................................................................... 34
Maximum Conversion Channels Register (ADCMAXCONV) ............................................... 38
Autosequence Status Register (ADCASEQSR) ............................................................... 40
ADC Status and Flag Register (ADCST) ....................................................................... 41
ADC Reference Select Register (ADCREFSEL) .............................................................. 43
ADC Offset Trim Register (ADCOFFTRIM) .................................................................... 43
ADC Input Channel Select Sequencing Control Registers .................................................. 44
ADC Conversion Result Buffer Registers (ADCRESULTn).................................................. 45
ADC Registers
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
ADC Control Registers
SPRU812A – September 2007 – Revised October 2007
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Contents
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