參數(shù)資料
型號: MB91155
廠商: Fujitsu Limited
英文描述: 32-bit Proprietary Microcontrollers
中文描述: 32位微控制器專有
文件頁數(shù): 55/105頁
文件大小: 989K
代理商: MB91155
MB91F155A/MB91155/MB91154
55
7.
8/10-bit A/D Converter (Sequential Conversion Type)
The A/D converter is a module that converts analog input voltage into a digital value. Its features are as follows :
A minimum conversion time of 5.0
μ
s/ch. (Including sampling time at a 33 MHz machine clock)
Contains a sample and hold circuit.
Resolution : 10 or 8 bits selectable.
Selection of analog input from eight channels by program
Single conversion mode :
Selects and converts one channel.
Continuous conversion mode : Converts a specified channel repeatedly.
Stop and convert mode :
Stops after converting one channel and stands by until invoked the next time.
(Conversion invoking can be synchronized.)
DMA transfer can be invoked by interrupt.
Selection of an invoking factor from software, external pin trigger (falling edge) , and 16-bit reload timer (rising
edge) .
Block Diagram
φ
MP
D
Comparator
Data register
A/D control register 1
A/D control register 2
Sample & hold circuit
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
ADCR
D/A converter
Sequential compare
register
Input
circuit
ADCS1
,
2
Operating clock
Prescaler
16-bit reload timer 2
External pin trigger
AV
SS
AVR
±
AV
SS
R
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