11
11-6
Ver.0.10
11.1.1 Conversion Modes
The A-D converters have two conversion modes: "A-D conversion mode" and "Comparator mode."
(1) A-D conversion mode
In A-D conversion mode, the analog input voltage in a specified channel is converted into digital
quantity.
In single mode, A-D conversion is performed on a channel selected by the Single Mode Register
1 analog input pin select bit. In scan mode, A-D conversion is performed on channels selected by
Scan Mode Register 1 according to settings of Scan Mode Register 0. The conversion result is
stored in each channel's corresponding 10-bit A-D Data Register. Also, 8-bit A-D conversion
results can be read from each 8-bit A-D Data Register.
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 when in single mode, or when operating in scan
mode, at completion of one cycle of scan loop.
(2) Comparator mode
In comparator mode, the analog input voltage in a specified channel is "comparated" (compared)
with the Successive Approximation Register value, and the result (relative magnitude of two
values) is returned to a flag.
The channel to be comparated is selected using the Single Mode Register 1 analog input pin
select bit. The result of comparate operation is flagged (1 or 0) by setting or resetting the A-D
Comparate Data Register bit that corresponds to the selected channel.
An A-D conversion interrupt request or a DMA transfer request (for the A-D0 converter only) can
be generated at completion of comparate operation.
A-D CONVERTERS
11.1 Outline of A-D Converters
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 ...