11
11-38
A-D Converters
32180 Group User's Manual (Rev.1.0)
Start dummy
Execution cycle
A-D conversion
start trigger
Convert operation
starts
Transferred to the
comparate data register
End dummy
Completed
11.3 Functional Description of A-D Converters
Figure 11.3.5 Conceptual Diagram of A-D Conversion Time during Comparator Mode
Table 11.3.4 Conversion Clock Periods during Comparator Mode
Unit: BCLK
Conversion speed
Start dummy
Execution cycle
End dummy
Slow mode
Normal speed
4
42
1
Double speed
4
24
1
Fast mode
Normal speed
4
18
1
Double speed
4
12
1
(4) A-D conversion time
A total A-D conversion time in various modes are shown in the table below.
Table 11.3.5 A-D Conversion Time (Total Time)
Unit: BCLK
Conversion start method
Conversion speed
Conversion mode (Note 1)
Conversion time
When fast sample-
and-hold enabled
Software and
Normal speed Single mode
299
191
hardware triggers
n-channel single-shot scan/
(298
×
n)+1
(190
×
n)+1
(Note 2)
continuous scan mode
Slow
Comparator mode
47
47
Mode Double speed Single mode
173
101
n-channel single-shot scan/
(172
×
n)+1
(100
×
n)+1
continuous scan mode
Comparator mode
29
29
Normal speed Single mode
131
95
n-channel single-shot scan/
(130
×
n)+1
(94
×
n)+1
continuous scan mode
Fast
Comparator mode
23
23
Mode Double speed Single mode
89
53
n-channel single-shot scan/
(88
×
n)+1
(52
×
n)+1
continuous scan mode
Comparator mode
17
17
Note 1: For single mode and comparator mode, this indicates an A-D conversion or comparate time per channel. For single-
shot and continuous scan modes, this indicates an A-D conversion time per scan loop.
Note 2: This indicates a time from when a register write cycle has finished to when an A-D conversion completion interrupt
request is generated, or a time from when an event bus or other MJT event has occurred to when an A-D conversion
completion interrupt request is generated.
(3) Calculating the conversion time during comparator mode
The following schematically shows the method for calculating the conversion time during comparator mode.
Содержание M32R/ECU Series
Страница 17: ...12 This page is blank for reasons of layout...
Страница 18: ...CHAPTER 1 OVERVIEW 1 1 Outline of the 32180 Group 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Assignments...
Страница 712: ...CHAPTER 18 OSCILLATOR CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit...
Страница 794: ...CHAPTER 22 TYPICAL CHARACTERISTICS...
Страница 795: ...22 22 2 32180 Group User s Manual Rev 1 0 TYPICAL CHARACTERISTICS To be written at a later time...
Страница 796: ...APPENDIX 1 MECHANICAL SPECIFICAITONS Appendix 1 1 Dimensional Outline Drawing...
Страница 798: ...APPENDIX 2 INSTRUCTION PROCESSING TIME Appendix 2 1 32180 Instruction Processing Time...
Страница 802: ...APPENDIX 3 PROCESSING OF UNUSED PINS Appendix 3 1 Example Processing of Unused Pins...