參數(shù)資料
型號： ADUC814ARU-REEL7
廠商： ANALOG DEVICES INC
元件分類： 微控制器/微處理器
英文描述： Circular Connector; MIL SPEC:MIL-DTL-38999 Series I; Body Material:Metal; Series:LJT; No. of Contacts:37; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Jam Nut Receptacle; Body Style:Straight RoHS Compliant: No
中文描述： 8-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PDSO28
封裝： 4.40 X 9.70 MM, MO-153AE, TSSOP-28
文件頁數(shù)： 22/72頁
文件大?。?/td> 846K
代理商： ADUC814ARU-REEL7
ADuC814
SFR INTERFACE TO ADC BLOCK
The ADC operation is fully controlled via three SFRs: ADCCON1, ADCCON2, and ADCCON3. These three registers control the mode
of operation.
Rev. A | Page 22 of 72
ADCCON1 (ADC CONTROL SFR 1)
The ADCCON1 register controls conversion and acquisition times, hardware conversion modes, and power-down modes as detailed
below.
SFR Address
SFR Power-on Default
Bit Addressable
EFH
00H
No
MODE
EXT_REF
CK1
CK0
AQ1
AQ0
T2C
EXC
Table 6. ADCCON1 SFR Bit Designations
Bit No.
Name
7
MODE
Description
Mode Bit.
This bit selects the operating mode of the ADC.
Set to 1 by the user to power on the ADC.
Set to 0 by the user to power down the ADC.
External Reference Select Bit.
This bit selects which reference the ADC uses when performing a conversion.
Set to 1 by the user to switch in an external reference.
Set to 0 by the user to switch in the on-chip band gap reference.
ADC Clock Divide Bits.
CK1 and CK0 combine to select the divide ratio for the PLL master clock used to generate the ADC clock. To ensure
correct ADC operation, the divider ratio must be chosen to reduce the ADC clock to 4.5 MHz and below. The
divider ratio is selected as follows:
CK1
CK0
PLL Divider
0
0
8
0
1
4
1
0
16
1
1
32
The ADC Acquisition Time Select Bits.
AQ1 and AQ0 combine to select the number of ADC clocks required for the input track-and-hold amplifier to
acquire the input signal. The acquisition time is selected as follows:
AQ1
AQ0
No. ADC Clks
0
0
1
0
1
2
1
0
3
1
1
4
The Timer2 Conversion Bit.
T2C is set to enable the Timer2 overflow bit to be used as the ADC convert start trigger input.
The External Trigger Enable Bit.
EXC is set to allow the external CONVST pin be used as the active low convert start trigger input. When enabled, a
rising edge on this input pin trigger a conversion. This pin should remain low for a minimum pulse width of
100 nsec at the required sample rate.
6
EXT_REF
5
4
CK1
CK0
3
2
AQ1
AQ0
1
T2C
0
EXC
相關(guān)PDF資料
PDF描述
ADUC814BRU Circular Connector; MIL SPEC:MIL-DTL-38999 Series I; Body Material:Metal; Series:LJT; No. of Contacts:37; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Jam Nut Receptacle; Body Style:Straight RoHS Compliant: No
ADUC814BRU-REEL Circular Connector; No. of Contacts:56; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:25-4
ADUC814BRU-REEL7 Circular Connector; No. of Contacts:61; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:25-61
ADUC814 MicroConverter, Small Package 12-Bit ADC with Embedded Flash MCU
ADUC814ARU MicroConverter, Small Package 12-Bit ADC with Embedded Flash MCU
相關(guān)代理商/技術(shù)參數(shù)
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