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Ver.0.10
11.3.4 Calculation of the A-D Conversion Time
The A-D conversion time is expressed by the sum of dummy cycle time and the actual execution
cycle time. The following shows each time factor necessary to calculate the conversion time.
➀
Start dummy time
A time from when the CPU executed the A-D conversion start instruction to when the A-D
converter starts A-D conversion
➁
A-D conversion execution cycle time
➂
Comparate execution cycle time
➃
End dummy time
A time from when the A-D converter finished A-D conversion to when the CPU can stably read
out this conversion result from the A-D data register
➄
Scan to scan dummy time
A time during single-shot or continuous scan mode from when the A-D converter finished A-D
conversion in a channel to when it starts A-D conversion in the next channel
The equation to calculate the A-D conversion time is as follows:
A-D conversion time = Start dummy time + Execution cycle time
(+ Scan to scan dummy time + Execution cycle time
+ Scan to scan dummy time + Execution cycle time
+ Scan to scan dummy time .... + Execution cycle time)
+ End dummy time
Note: Shown in ( ) are the conversion time required for the second and subsequent channels to be
converted in scan mode.
A-D CONVERTERS
11.3 Functional Description 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 ...