參數(shù)資料
型號: EVAL-ADUC7039QSPZ
廠商: Analog Devices Inc
文件頁數(shù): 30/92頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR ADUC7039
設(shè)計資源: ADuC7039QSPZ Gerber Files
EVAL-ADuC7039 Schematic & Brd Outline
標(biāo)準(zhǔn)包裝: 1
系列: QuickStart™ PLUS 套件
類型: MCU
適用于相關(guān)產(chǎn)品: ADuC7039
所含物品:
ADuC7039
Data Sheet
Rev. D | Page 36 of 92
Current Channel ADC Control Register
Name:
ADC0CON
Address:
0xFFFF050C
Default Value:
0x0002
Access:
Read/write
Function:
The current channel ADC control MMR is a 16-bit register that is used to configure the I-ADC.
Note:
If the current ADC is reconfigured via ADC0CON, the voltage/temperature ADC is also reset.
Table 29. ADC0CON MMR Bit Designations
Bit
Description
15
Current channel ADC enable.
This bit is set by user code to enable the I-ADC.
This bit is cleared by user code power-down the I-ADC and resets the respective ADC ready bit in the ADCSTA MMR to 0.
14 to 13
IIN current source enable.
00 = current sources off.
01 = enables 50 μA current source on IIN+.
10 = enables 50 μA current source on IIN.
11 = enables 50 μA current source on both IIN and IIN+.
12 to 10
Not used. These bits are reserved for future functionality and should be written as zero.
9
Current channel ADC output coding.
This bit is set by user code to configure I-ADC output coding as unipolar.
This bit is cleared by user code to configure I-ADC output coding as twos complement.
8
Not used. This bit is reserved for future functionality and should be written as zero.
7 to 6
Current channel ADC input select.
00 = IIN+, IIN.
01 = IIN, IIN = diagnostic, internal short configuration.
10 = VREF/136, 0 V, diagnostic, test voltage for gain settings <512. If the (REG_AVDD, AGND) divided-by-two reference is selected,
REG_AVDD is used instead of VREF with this I-ADC input selection. This leads to ADC0DAT scaled by two.
11 = not defined.
5
Reserved.
4
Current channel ADC reference select.
0 = internal, 1.2 V precision reference selected.
1 = (REG_AVDD, AGND) divided-by-two selected.
3 to 0
Current channel ADC gain select. Note: nominal I-ADC full-scale input voltage = (VREF/gain).
0001 = I-ADC gain of 2. This setting is tested for functionality only; therefore, it does not appear in the electrical specifications.
0010 = I-ADC gain of 4.
0011 = I-ADC gain of 8.
0100 = I-ADC gain of 16.
0101 = I-ADC gain of 32.
0110 = I-ADC gain of 64.
0111 = I-ADC gain of 128.
1000 = I-ADC gain of 256.
1001 = I-ADC gain of 512.
Other = I-ADC gain is undefined.
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