參數(shù)資料
型號： MB90F377
廠商： Fujitsu Limited
英文描述： 16-bit Proprietary Microcontroller
中文描述： 16位微控制器專有
文件頁數(shù)： 79/140頁
文件大?。?/td> 650K
代理商： MB90F377
MB90370/375 Series
79
14. A/D converter
The A/D (Analog to Digital) converter converts the analog voltage input to an analog input pin (input voltage) to
a digital value.
The converter has the following features :
The minimum conversion time is 6.13
μ
s (for a machine clock of 16 MHz; includes the sampling time) .
The minimum sampling time is 3.75
μ
s (for a machine clock of 16 MHz) .
The converter uses the RC-type successive approximation conversion method with a sample and hold circuit.
A resolution of 10 bits or 8 bits can be selected.
Up to twelve channels for analog input pins can be selected by a program.
Various conversion modes :
- Single conversion mode : Selectively convert one channel.
- Scan conversion mode : Continuously convert multiple channels. Maximum of 12 selectable channels.
- Continuous conversion mode : Repeatedly convert specified channels.
- Stop conversion mode : Convert one channel then halt until the next activation. (Enables synchronization of
the conversion start timing.)
At the end of A/D conversion, an interrupt request can be generated and EI2OS can be activated.
In the interrupt-enabled state, the conversion data protection function prevents any part of the data from being
lost through continuous conversion.
The conversion can be activated by software, 16-bit reload timer 4 (rise edge) and ADTG.
(1) Register configuration of A/D converter
(Continued)
Analog Input Enable Register 2
Analog Input Enable Register 1
A/D Control Status Register 1
A/D Control Status Register 0
Bit number
ADER2
Address : 00002B
H
Read/write
Initial value
Bit number
ADER1
Address : 00002A
H
Read/write
Initial value
Bit number
ADCS1
Address : 000031
H
Read/write
Initial value
Bit number
ADCS0
Address : 000030
H
Read/write
Initial value
R/W
1
R/W
1
R/W
1
R/W
1
15
14
13
12
11
10
9
8
ADE11
ADE10
ADE9
ADE8
R/W
1
R/W
1
R/W
1
R/W
1
R/W
1
R/W
1
R/W
1
7
6
5
4
3
2
1
0
ADE6
R/W
1
ADE7
ADE5
ADE4
ADE3
ADE2
ADE1
ADE0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
W
0
R/W
0
15
14
13
12
11
10
9
8
INT
R/W
0
BUSY
INTE
PAUS
STS1
STS0
STRT
RESV
R/W
0
7
6
5
4
3
2
1
0
MD0
R/W
0
MD1
相關(guān)PDF資料
PDF描述
MB90F377PFF-G 16-bit Proprietary Microcontroller
MB90F378 16-bit Proprietary Microcontroller
MB90F378PFF-GE1 16-bit Proprietary Microcontroller
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MB90F387PMT 16-bit Proprietary Microcontroller CMOS
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