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MB90F474LPF Arkusz danych(PDF) 39 Page - fujitsu semiconductor

Numer części MB90F474LPF
Szczegółowy opis  16-Bit Proprietary Microcontroller
PDF  118 Pages
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Producent  FUJITSU [fujitsu semiconductor]
Strona internetowa  
Logo FUJITSU - fujitsu semiconductor

MB90F474LPF Arkusz danych(HTML) 39 Page - fujitsu semiconductor

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MB90470 Series
39
4.
8/10-bit A/D Converter
The A/D converter converts analog input voltages into digital values, and provides the following features :
• Conversion time : minimum 4.9
µs per channel
(at 98 machine cycles/machine clock 20 MHz, including sampling time)
• Sampling time : minimum 3.0
µs per channel
(at 60 machine cycles/machine clock 20 MHz)
• Uses RC sequential comparison conversion with sample & hold circuit.
• Selection of 8- or 10-bit resolution
• Analog input from 8 channels, by program selection
Single conversion mode : Convert 1 selected channel
Scan conversion mode : Convert multiple consecutive channels. Select up to 8 channels by program selection.
Continuous conversion mode : Convert specified channel continuously.
Stop conversion mode : Convert one channel, pause and stand by until the next start. (Simultaneous conversion
start available.)
• At the end of A/D conversion, an A/D conversion end interrupt request can be sent to the CPU. This interrupt
request can start the
µDMA and transfer the conversion data to memory, making it ideal for continuous
processing.
• Start sources include selection of software, external trigger (falling edge) , or timer (rising edge) .
(1) Register List
ADCS2, ADCS1 (Control status registers)
ADCR2, ADCR1 (Data registers)
ADCS1
Address : 000046H
←Default value
←Bit attributes
ADCS2
bit
Address : 000047H
←Default value
←Bit attributes
ADCR1
bit
Address : 000048H
←Default value
←Bit attributes
ADCR2
bit
Address : 000049H
←Default value
←Bit attributes
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
76
5
4
3
2
1
0
MD0
0
R/W
MD1
ANS2
ANS1
ANS0
ANE2
ANE1
ANE0
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
W
0
R/W
15
14
13
12
11
10
9
8
INT
0
R/W
BUSY
INTE
PAUS
STS1
STS0
STRT
Reserved
X
R
X
R
X
R
X
R
X
R
X
R
X
R
76
5
4
3
2
1
0
D6
X
R
D7
D5
D4
D3
D2
D1
D0
0
W
0
W
0
W
0
W
X
R
X
R
X
R
15
14
13
12
11
10
9
8
ST1
0
R/W
S10
ST0
CT1
CT0
D9
D8



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