SNIU028D February 2016 – September 2020 UCD3138 , UCD3138064 , UCD3138064A , UCD3138128 , UCD3138A , UCD3138A64
Address 0x0008_0030 – Front End Control 2 SAR Control Register
Address 0x000B_0030 – Front End Control 1 SAR Control Register
Address 0x000E_0030 – Front End Control 0 SAR Control Register
31 | 24 |
EADC_WINDOW_2 |
R/W-0010 1000 |
23 | 16 |
EADC_WINDOW_1 |
R/W-0110 0000 |
15 | 8 |
SAR_RANGE |
R/W-0000 0000 |
7 | 2 | 1 | 0 |
Reserved | SAR_RESOLUTION |
R-0000 00 | R/W-00 |
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
31-24 | EADC_WINDOW _2 | R/W | 0010 1000 | Configures acceptable range of error values to transition to AFE Gain of 2 during SAR process |
23-16 | EADC_WINDOW _1 | R/W | 0110 0000 | Configures acceptable range of error values to transition to AFE Gain of 1 during SAR process |
15-8 | SAR_RANGE | R/W | 0000 0000 | Configures acceptable range of error values before declaring SAR completion |
7-2 | Reserved | R | 0000 00 | |
1-0 | SAR_ RESOLUTION | R/W | 00 | Configures the final resolution for SAR Conversions 0 = 8mV Resolution, 1x AFE Gain 1 = 4mV Resolution, 2x AFE Gain 2 = 2mV Resolution, 4x AFE Gain 3 = 1mV Resolution, 8x AFE Gain |