SNIU028D February 2016 – September 2020 UCD3138 , UCD3138064 , UCD3138064A , UCD3138128 , UCD3138A , UCD3138A64
Address 0x0008_0024 – Front End Control 2 Analog Control Register
Address 0x000B_0024 – Front End Control 1 Analog Control Register
Address 0x000E_0024 – Front End Control 0 Analog Control Register
15 | 10 | 9 | 8 |
EADC_REF_TRIM | EADC_REF _RESET | EADC_REF _EN |
R/W-000000 | R/W-1 | R/W-0 |
7 | 5 | 4 | 3 | 2 | 1 | 0 |
Reserved | EADC_GAIN _CAL | EADC_OFFSET_CAL | INT_REF_SEL | EXT_V_SE _SEL | ANALOG_ENA |
R-000 | R/W-0 | R/W-0 | R/W-1 | R/W-0 | R/W-1 |
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
15-10 | EADC_REF_TRIM | R/W | 000000 | EADC Reference Trim Value. Bits will be programmed during test and should not be overwritten by firmware. |
9 | EADC_REF _RESET | R/W | 1 | EADC Reference Reset 0 = Reference not in reset 1 = Resets Reference (Default) |
8 | EADC_REF_EN | R/W | 0 | EADC Reference Enable 0 = Disables EADC Reference (Default) 1 = Enables EADC Reference |
7-5 | Reserved | R | 000 | |
4 | EADC_GAIN_CAL | R/W | 0 | EADC Gain Calibration Mode Enable 0 = Disables Gain Calibration Mode (Default) 1 = Enables Gain Calibration Mode |
3 | EADC_OFFSET _CAL | R/W | 0 | EADC Offset Calibration Mode Enable 0 = Disables Offset Calibration Mode (Default) 1 = Enables Offset Calibration Mode |
2 | INT_REF_SEL | R/W | 1 | EADC Reference Select 0 = Selects External Reference for EADC from AD8-AD9 pins. In external mode, DAC_P tied to AD8 and DAC_N tied to AD9. 1 = Selects Internal Reference for EADC from DAC (Default) |
1 | EXT_V_SE_SEL | R/W | 0 | EADC Select 0 = Selects Internal V_SE, output from EADC (Default) 1 = Selects External V_SE, bypass EADC |
0 | ANALOG_ENA | R/W | 1 | Analog Front End Enable 0 = Disables Analog Front End 1 = Enables Analog Front End (Default) |