340
CHAPTER 18 8-/10-BIT A/D CONVERTER
18.1
Overview of 8-/10-bit A/D Converter
The 8-/10-bit A/D converter converts the analog input voltage to a 8- or 10-bit digital
value by using the RC sequential-comparison converter system.
• An input signal can be selected from the input signals of the analog input pins for 16
channels.
• The start trigger can be selected from a software trigger and an external trigger.
■
Function of 8-/10-bit A/D Converter
The 8-/10-bit A/D converter converts the analog voltage (input voltage) input to the analog input pin into
an 8- or 10-bit digital value (A/D conversion).
The 8-/10-bit A/D converter has the following functions:
•
A/D conversion time is a minimum of 1.9
µ
s
*
per channel including sampling time.
•
Sampling time is a minimum of 0.5
µ
s
*
per channel.
•
RC sequential-comparison converter system with sample & hold circuit
•
Setting of 8-bit or 10-bit resolution enabled
•
Analog input pin can be used up to 16 channels.
•
Generates interrupt request by storing A/D conversion results in A/D data register
•
Starts EI
2
OS if interrupt request generated. Use of the EI
2
OS prevents data loss even at continuous A/D
conversion.
•
Selects start trigger from software trigger and external trigger (falling edge)
*: When the machine clock frequency operates at 24 MHz and AV
CC
≥
4.5 V.
■
Conversion Modes of 8-/10-bit A/D Converter
There are 3 conversion modes of 8-/10-bit A/D converter as shown below:
Table 18.1-1 Conversion Modes of 8-/10-bit A/D Converter
Conversion
Mode
Description
Single-shot
conversion mode
A/D conversion is performed sequentially from the start channel to the end channel.
When A/D conversion for the end channel is terminated, it stops.
Continuous
conversion mode
A/D conversion is performed sequentially from the start channel to the end channel.
When A/D conversion for the end channel is terminated, it is continued after
returning to the start channel.
Pause-conversion
mode
A/D conversion is performed pausing per channel. When A/D conversion for the
end channel is terminated, A/D conversion and pause are repeated after returning to
the start channel.
Summary of Contents for F2MCTM-16LX
Page 2: ......
Page 3: ...FUJITSU LIMITED F2MCTM 16LX 16 BIT MICROCONTROLLER MB90360 Series HARDWARE MANUAL ...
Page 4: ......
Page 42: ...26 CHAPTER 1 OVERVIEW ...
Page 70: ...54 CHAPTER 2 CPU ...
Page 134: ...118 CHAPTER 6 CLOCK SUPERVISOR ...
Page 176: ...160 CHAPTER 8 LOW POWER CONSUMPTION MODE ...
Page 194: ...178 CHAPTER 10 I O PORTS ...
Page 252: ...236 CHAPTER 13 16 Bit I O TIMER ...
Page 282: ...266 CHAPTER 14 16 BIT RELOAD TIMER ...
Page 296: ...280 CHAPTER 15 WATCH TIMER ...
Page 386: ...370 CHAPTER 18 8 10 BIT A D CONVERTER ...
Page 426: ...410 CHAPTER 20 LIN UART Figure 20 5 2 ORE Flag Set Timing RDRF ORE Reception data ...
Page 540: ...524 CHAPTER 22 ADDRESS MATCH DETECTION FUNCTION ...
Page 568: ...552 CHAPTER 24 512K BIT FLASH MEMORY ...
Page 633: ...617 APPENDIX B Instructions Table B 9 3 Bit Operation Instruction Map first byte 6CH ...
Page 634: ...618 APPENDIX Table B 9 4 Character String Operation Instruction Map first byte 6EH ...
Page 637: ...621 APPENDIX B Instructions Table B 9 7 ea Instruction 2 first byte 71H ...
Page 638: ...622 APPENDIX Table B 9 8 ea Instruction 3 first byte 72H ...
Page 639: ...623 APPENDIX B Instructions Table B 9 9 ea Instruction 4 first byte 73H ...
Page 640: ...624 APPENDIX Table B 9 10 ea Instruction 5 first byte 74H ...
Page 641: ...625 APPENDIX B Instructions Table B 9 11 ea Instruction 6 first byte 75H ...
Page 642: ...626 APPENDIX Table B 9 12 ea Instruction 7 first byte 76H ...
Page 643: ...627 APPENDIX B Instructions Table B 9 13 ea Instruction 8 first byte 77H ...
Page 644: ...628 APPENDIX Table B 9 14 ea Instruction 9 first byte 78H ...
Page 645: ...629 APPENDIX B Instructions Table B 9 15 MOVEA RWi ea Instruction first byte 79H ...
Page 646: ...630 APPENDIX Table B 9 16 MOV Ri ea Instruction first byte 7AH ...
Page 647: ...631 APPENDIX B Instructions Table B 9 17 MOVW RWi ea Instruction first byte 7BH ...
Page 648: ...632 APPENDIX Table B 9 18 MOV Ri ea Instruction first byte 7CH ...
Page 649: ...633 APPENDIX B Instructions Table B 9 19 MOVW ea Rwi Instruction first byte 7DH ...
Page 650: ...634 APPENDIX Table B 9 20 XCH Ri ea Instruction first byte 7EH ...
Page 651: ...635 APPENDIX B Instructions Table B 9 21 XCHW RWi ea Instruction first byte 7FH ...
Page 664: ...648 APPENDIX ...
Page 665: ...649 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Page 682: ......