參數(shù)資料
型號： MB90487BPMC
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁數(shù)： 61/124頁
文件大?。?/td> 3283K
代理商： MB90487BPMC
MB90480B/485B Series
DS07-13722-11E
41
4.
8/10-bit A/D Converter
The A/D converter converts analog input voltage to digital values, and provides the following features.
Conversion time : minimum 3.68
μs per channel
(92 machine cycles at 25 MHz machine clock, including sampling time)
Sampling time : minimum 1.92
μs per channel
(48 machine cycles at 25 MHz machine clock)
RC sequential comparison conversion method, with sample & hold circuit.
8-bit or 10-bit resolution
Analog input selection of 8 channels
Single conversion mode : Conversion from one selected channel.
Scan conversion mode : Conversion from multiple consecutive channels, programmable selection of up to
8 channels.
Continuous conversion mode : Repeated conversion of specified channels.
Stop conversion mode : Conversion from one channel followed by a pause until the next activation allows to
synchronize with conversion start.
At the end of A/D conversion, an A/D conversion completed interrupt request can be generated to the CPU.
The interrupt can be used activate the
μDMAC in order to transfer the results of A/D conversion to memory
for efficient continuous processing.
The starting factor conversion may be selected from software, external trigger (falling edge) , or timer (rising
edge) .
(1) Register List
ADCS2, ADCS1 (Control status register)
ADCR2, ADCR1 (Data register)
ADCS1
Address : 000046H
← Initial value
← Bit attributes
ADCS2
Address : 000047H
← Initial value
← Bit attributes
ADCR1
Address : 000048H
← Initial value
← Bit attributes
ADCR2
Address : 000049H
← Initial 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
W
S10
ST0
CT1
CT0
D9
D8
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相關代理商/技術參數(shù)
參數(shù)描述
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