ZHCSFE1B June 2016 – August 2017 ADS8920B , ADS8922B , ADS8924B
PRODUCTION DATA.
This register controls the low-power modes offered by the device.
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 0 | 0 | 0 | 0 | 0 | PD_REFBUF | PD_ADC | 0 |
| R-0b | R-0b | R-0b | R-0b | R-0b | R/W-0b | R/W-0b | R-0b |
| LEGEND: R/W = Read/Write; R = Read only; -n = value after reset |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 7-3 | 0 | R | 00000b | Reserved bits. Reads return 00000b. |
| 2 | PD_REFBUF | R/W | 0b | This bit powers down the internal reference buffer. 0b = Internal reference buffer is powered up 1b = Internal reference buffer is powered down |
| 1 | PD_ADC | R/W | 0b | This bit powers down the converter module. 0b = converter module is powered up 1b = converter module is powered down |
| 0 | 0 | R | 0b | Reserved bits. Do not write. Reads return 0b. |
To power-down the converter module, set the PD_ADC bit in the PD_CNTL register. The converter module powers down on the rising edge of CS. To power-up the converter module, reset the PD_ADC bit in the PD_CNTL register. The converter module starts to power-up on the rising edge of CS. Wait for tPU_ADC before initiating any conversion or data transfer operation.
To power-down the internal reference buffer, set the PD_REFBUF bit in the PD_CNTL register. The internal reference buffer powers down on the rising edge of CS. To power-up the internal reference buffer, reset the PD_REFBUF bit in the PD_CNTL register. The internal reference buffer starts to power-up on the rising edge of CS. Wait for tPU_REFBUF before initiating any conversion.