aduc7030 Analog Devices, Inc., aduc7030 Datasheet - Page 58
aduc7030
Manufacturer Part Number
aduc7030
Description
Integrated Precision Battery Sensor For Automotive
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADUC7030.pdf
(150 pages)
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ADuC7030/ADuC7033
Voltage/Temperature Channel ADC Control Register:
Name:
Address:
Default Value:
Access:
Function:
Note:
Table 31. ADC1CON MMR Bit Designations
Bit
15
14, 13
12– 10
9
8
7, 6
5, 4
3 – 0
Description
Voltage/Temperature Channel ADC Enable
This bit is set to 1 by user code to enable the V/T-ADC. When enabling/disabling the Voltage channel, the Voltage Attenuator
must also be enabled/disabled via HVCFG1[7] if measuring battery voltage.
Clearing this bit to 0, powers down the V/T-ADC.
VTEMP Current Source Enable
0, 0
0, 1
1, 0
1, 1
Not Used. These bits are reserved for future functionality and should not be modified by user code
Voltage/Temperature Channel ADC Output Coding
This bit is set to 1 by user code to configure V/T-ADC output coding as unipolar
This bit is cleared to 0 by user code to configure V/T -ADC output coding as 2’s complement
Not Used. This bit is reserved for future functionality and should be written as 0 by user code
Voltage/Temperature Channel ADC Input Select
0, 0
0, 1
1, 0
1, 1
Voltage Temperature Channel ADC Reference Select
0, 0
0, 1
1, 0
1, 1
Not Used. These bits are reserved for future functionality and should not be written as 0 by user code
Internal, 1.2V precision reference selected.
External reference inputs divided by 2 (VREF, GND_SW)/2 selected. This allows an external reference up to
(REG_AVDD, AGND) / 2 selected for the Voltage Channel.
External reference inputs (VREF, GND_SW) selected.
REG_AVDD
(REG_AVDD, GND_SW) / 2 selected for the Temperature Channel.
ADC1CON
0xFFFF0510
0x0000
Read/Write
The Voltage/Temperature Channel ADC Control MMR is a 16-bit register that is used to configure the V/T-ADC.
When enabling/disabling the Voltage/Temperature ADC, the Voltage Attenuator must also be enabled/disabled via
HVCFG1[7].
VBAT/24, AGND
VTEMP, GND_SW
Internal Sensor
Internal Short
Current Sources Off
Enable 50µA current source on VTEMP+
Enable 50µA current source on GND_SW
Enable 50µA current source on both VTEMP+ and GND_SW
VBAT attenuator selected
External Temperature Input selected, conversion result written to ADC2DAT
Internal Temperature Sensor Input selected, conversion result written to ADC2DAT
Shorted Input
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