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A-D Converters
32180 Group User's Manual (Rev.1.0)
11.3 Functional Description of A-D Converters
Table 11.3.1 Conversion Clock Periods in A-D Conversion Mode
Unit: BCLK
Conversion speed
Start dummy (Note 1) Execution cycle
End dummy
Scan to scan dummy (Note 2)
Slow mode
Normal speed
4
294
1
4
Double speed
4
168
1
4
Fast mode
Normal speed
4
126
1
4
Double speed
4
84
1
4
Note 1: The same applies to both software and hardware triggers.
Note 2: Only during scan operation, execution time per channel is added.
(2) Calculating the conversion time when sample-and-hold is enabled
The following schematically shows the method for calculating the conversion time when the sample-and-hold
function is enabled.
Start dummy
Execution cycle
A-D conversion
start trigger
Convert operation
starts
End dummy
Completed
Sampling
time
Figure 11.3.4 Conceptual Diagram of A-D Conversion Time when Sample-and-Hold is Enabled
Table 11.3.2 Conversion Clock Periods during Normal Sample-and-Hold Mode
Unit: BCLK
Conversion speed
Start dummy (Note 1) Execution cycle
End dummy
Scan to scan dummy (Note 2)
Slow mode
Normal speed
4
294
1
4
Double speed
4
168
1
4
Fast mode
Normal speed
4
126
1
4
Double speed
4
84
1
4
Note 1: The same applies to both software and hardware triggers.
Note 2: Only during scan operation, execution time per channel is added.
Table 11.3.3 Conversion Clock Periods during Fast Sample-and-Hold Mode
Unit: BCLK
Conversion speed
Start dummy (Note 1) Execution cycle
End dummy
Scan to scan dummy (Note 2)
Slow mode
Normal speed
4
186
1
4
Double speed
4
96
1
4
Fast mode
Normal speed
4
90
1
4
Double speed
4
48
1
4
Note 1: The same applies to both software and hardware triggers.
Note 2: Only during scan operation, execution time per channel is added.
Summary of Contents for M32R/ECU Series
Page 17: ...12 This page is blank for reasons of layout...
Page 712: ...CHAPTER 18 OSCILLATOR CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit...
Page 794: ...CHAPTER 22 TYPICAL CHARACTERISTICS...
Page 796: ...APPENDIX 1 MECHANICAL SPECIFICAITONS Appendix 1 1 Dimensional Outline Drawing...
Page 798: ...APPENDIX 2 INSTRUCTION PROCESSING TIME Appendix 2 1 32180 Instruction Processing Time...
Page 802: ...APPENDIX 3 PROCESSING OF UNUSED PINS Appendix 3 1 Example Processing of Unused Pins...