
11
11-7
Ver.0.10
11.1.2 Operation Modes
The A-D converters operate in two modes: "Single mode" and "Scan mode."
(1) Single mode
In single mode, the analog input voltage in one selected channel is A-D converted once or
comparated with a given quantity. An A-D conversion interrupt request or a DMA transfer request
(for the A-D0 converter only) can be generated at completion of A-D conversion.
Figure 11.1.3 Operation in Single Mode (A-D Conversion)
Figure 11.1.4 Operation in Single Mode (Comparate)
Note 1: A-D0 conversion start: Software trigger
→
Started by setting A-D0 conversion start bit to 1
____________
Hardware trigger
→
Started by output event bus 3 or ADTRG signal input
A-D1 conversion start: Software trigger
→
Started by setting A-D1 conversion start bit to 1
____________
Hardware trigger
→
Started by TID1 overflow/underflow or ADTRG signal input
Note 2: DMA transfer request: Can be generated for only the A-D0 converter.
Note 1: Comparate start: Started by writing a comparison value to the successive approximation register (ADiSAR)
Note 2: DMA transfer request: Can be generated for only the A-D0 converter.
A-D CONVERTERS
11.1 Outline of A-D Converters
A-D conversion interrupt request
or DMA transfer request (Note 2)
ANiINn
Completed
ADiDTn
10-bit A-Di data register
Conversion
starts
(Note 1)
i=0,1
n=0-15
ADiINn
ADiCMP
A-Di comparate
data register
ADiSAR
A-D successive approximation register
Comparate result
ADiCMP=0 (ANn>ADiSAR)
ADiCMP=1 (ANn<ADiSAR)
i=0,1
n=0-15
A-D conversion interrupt request
or DMA transfer request (Note 2)
Completed
Conversion
starts
(Note 1)
Summary of Contents for M32170F3VFP
Page 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Page 56: ...2 2 14 Ver 0 10 This is a blank page ...
Page 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Page 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Page 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Page 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Page 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Page 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...