參數(shù)資料
型號: ADUC832BSZ
廠商: Analog Devices Inc
文件頁數(shù): 30/92頁
文件大?。?/td> 0K
描述: IC ADC/DAC 12BIT W/MCU 52MQFP
產(chǎn)品培訓(xùn)模塊: Process Control
標(biāo)準(zhǔn)包裝: 1
系列: MicroConverter® ADuC8xx
核心處理器: 8052
芯體尺寸: 8-位
速度: 16MHz
連通性: EBI/EMI,I²C,SPI,UART/USART
外圍設(shè)備: PSM,溫度傳感器,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 62KB(62K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 4K x 8
RAM 容量: 2.25K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b,D/A 2x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 52-QFP
包裝: 托盤
產(chǎn)品目錄頁面: 738 (CN2011-ZH PDF)
ADuC832
Data Sheet
Rev. B | Page 36 of 92
ADCCON1 (ADC Control SFR 1)
SFR Address:
EFH
SFR Power-On Default Value:
00H
Bit Addressable:
No
The ADCCON1 register controls conversion and acquisition
times, hardware conversion modes, and power-down modes as
detailed in Table 16.
Table 16. ADCCON1 SFR Bit Designations
Bit
Name
Description
[7]
MD1
The mode bit selects the active operating mode of the ADC. Set by the user to power up the ADC. Cleared by the user
to power down the ADC.
[6]
EXT_REF
Set by the user to select an external reference. Cleared by the user to use the internal reference.
[5]
CK1
The ADC clock divide bits (CK1, CK0) select the divide ratio for the PLL master clock used to generate the
[4]
CK0
ADC clock. To ensure correct ADC operation, the divider ratio must be chosen to reduce the ADC clock to ≤4.5 MHz. A
typical ADC conversion requires 17 ADC clocks. The divider ratio is selected as follows:
CK1
CK0
MCLK Divider
0
8
0
1
4
1
0
16
1
32
[3:2]
AQ[1:0]
The ADC acquisition select bits (AQ1, AQ0) select the time provided for the input track-and-hold amplifier to acquire
the input signal. An acquisition of three or more ADC clocks is recommended; clocks are selected as follows:
AQ1
AQ0
Number of ADC Clocks
0
1
0
1
2
1
0
3
1
4
[1]
T2C
The Timer 2 conversion bit (T2C) is set by the user to enable the Timer 2 overflow bit to be used as the ADC convert
start trigger input.
[0]
EXC
The external trigger enable bit (EXC) is set by the user to allow the external Pin P3.5/T1/CONVST to be used as the
active low convert start input. This input should be an active low pulse (minimum pulse width >100 ns) at the required
sample rate.
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