355
CHAPTER 18 8-/10-BIT A/D CONVERTER
The sampling time must be set according to drive impedance R
ext
connected to analog input. If the
following condition is not met, the conversion accuracy will not be guaranteed.
•
R
ext
≤
1.5k
Ω
:
•
- 4.5 V
≤
AV
CC
< 5.5 V: The sampling time must be set greater than 0.5
µ
s.
•
4.0 V
≤
AV
CC
< 4.5 V: The sampling time must be set greater than 1.2
µ
s.
•
R
ext
>
1.5k
Ω
: The sampling time must be set greater than T
samp
given by the following formula.
•
4.5 V
≤
AV
CC
< 5.5 V: T
samp
= (2.52 k
Ω
+R
ext
)
×
10.7 pF
×
7
•
4.0 V
≤
AV
CC
< 4.5 V: T
samp
= (13.6 k
Ω
+R
ext
)
×
10.7 pF
×
7
■
Setting of Comparing Time (CT2 to CT0 bits)
The comparing time must be set according to the analog power supply voltage AV
CC
. If the following
condition is not met, the conversion accuracy will not be guaranteed.
•
4.5 V
≤
AV
CC
< 5.5 V: The comparing time must be set greater than 1.00
µ
s.
•
4.0 V
≤
AV
CC
< 4.5 V: The comparing time must be set greater than 2.00
µ
s.
Table 18.3-7 Relation between CT2 to CT0 Bits and Comparing Time
CT2
CT1
CT0
Setting of comparing
time
Setting example
(φ
: Internal
operating frequency)
0
0
0
22 machine cycles
φ
= 20 MHz: 1.1
µ
s
0
0
1
33 machine cycles
φ
= 24 MHz: 1.4
µ
s
0
1
0
44 machine cycles
φ
= 24 MHz: 1.8
µ
s
0
1
1
66 machine cycles
φ
= 24 MHz: 2.75
µ
s
1
0
0
88 machine cycles
φ
= 8 MHz: 11.0
µ
s
1
0
1
132 machine cycles
φ
= 16 MHz: 8.25
µ
s
1
1
0
176 machine cycles
φ
= 20 MHz: 8.8
µ
s
1
1
1
264 machine cycles
φ
= 24 MHz: 11.0
µ
s
Содержание F2MCTM-16LX
Страница 2: ......
Страница 3: ...FUJITSU LIMITED F2MCTM 16LX 16 BIT MICROCONTROLLER MB90360 Series HARDWARE MANUAL ...
Страница 4: ......
Страница 42: ...26 CHAPTER 1 OVERVIEW ...
Страница 66: ...50 CHAPTER 2 CPU MOV ILM imm8 The instruction is executed normally but the prefix affects the next instruction ...
Страница 70: ...54 CHAPTER 2 CPU ...
Страница 134: ...118 CHAPTER 6 CLOCK SUPERVISOR ...
Страница 176: ...160 CHAPTER 8 LOW POWER CONSUMPTION MODE ...
Страница 194: ...178 CHAPTER 10 I O PORTS ...
Страница 252: ...236 CHAPTER 13 16 Bit I O TIMER ...
Страница 282: ...266 CHAPTER 14 16 BIT RELOAD TIMER ...
Страница 295: ...279 CHAPTER 15 WATCH TIMER ORG 00FFDCH Reset vector set DSL START DB 00H Set to single chip mode VECT ENDS END START ...
Страница 296: ...280 CHAPTER 15 WATCH TIMER ...
Страница 386: ...370 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 426: ...410 CHAPTER 20 LIN UART Figure 20 5 2 ORE Flag Set Timing RDRF ORE Reception data ...
Страница 540: ...524 CHAPTER 22 ADDRESS MATCH DETECTION FUNCTION ...
Страница 568: ...552 CHAPTER 24 512K BIT FLASH MEMORY ...
Страница 633: ...617 APPENDIX B Instructions Table B 9 3 Bit Operation Instruction Map first byte 6CH ...
Страница 634: ...618 APPENDIX Table B 9 4 Character String Operation Instruction Map first byte 6EH ...
Страница 635: ...619 APPENDIX B Instructions Table B 9 5 2 byte Instruction Map first byte 6FH MUL MULW DIVU A A A ...
Страница 637: ...621 APPENDIX B Instructions Table B 9 7 ea Instruction 2 first byte 71H ...
Страница 638: ...622 APPENDIX Table B 9 8 ea Instruction 3 first byte 72H ...
Страница 639: ...623 APPENDIX B Instructions Table B 9 9 ea Instruction 4 first byte 73H ...
Страница 640: ...624 APPENDIX Table B 9 10 ea Instruction 5 first byte 74H ...
Страница 641: ...625 APPENDIX B Instructions Table B 9 11 ea Instruction 6 first byte 75H ...
Страница 642: ...626 APPENDIX Table B 9 12 ea Instruction 7 first byte 76H ...
Страница 643: ...627 APPENDIX B Instructions Table B 9 13 ea Instruction 8 first byte 77H ...
Страница 644: ...628 APPENDIX Table B 9 14 ea Instruction 9 first byte 78H ...
Страница 645: ...629 APPENDIX B Instructions Table B 9 15 MOVEA RWi ea Instruction first byte 79H ...
Страница 646: ...630 APPENDIX Table B 9 16 MOV Ri ea Instruction first byte 7AH ...
Страница 647: ...631 APPENDIX B Instructions Table B 9 17 MOVW RWi ea Instruction first byte 7BH ...
Страница 648: ...632 APPENDIX Table B 9 18 MOV Ri ea Instruction first byte 7CH ...
Страница 649: ...633 APPENDIX B Instructions Table B 9 19 MOVW ea Rwi Instruction first byte 7DH ...
Страница 650: ...634 APPENDIX Table B 9 20 XCH Ri ea Instruction first byte 7EH ...
Страница 651: ...635 APPENDIX B Instructions Table B 9 21 XCHW RWi ea Instruction first byte 7FH ...
Страница 664: ...648 APPENDIX ...
Страница 665: ...649 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Страница 682: ......