ZHCSJX5 June 2019 ADS7028
ADVANCE INFORMATION for pre-production products; subject to change without notice.
In autonomous mode, the device can be programmed to monitor the voltage applied on the analog input pins of the device and generate an ALERT signal internal to the device when the programmable high or low threshold values are crossed. The internal ALERT signal can be mapped to any one digital output channel by configuring the channel ID in the ALERT_PIN[3:0] register field. In autonomous mode, the device generates the start of conversion using the internal oscillator. The first start of conversion must be provided by the host and the device generates the subsequent start of conversions.
Figure 19 shows the steps for configuring the functional mode to autonomous mode. Abort the on-going sequence by setting the SEQ_START to 0b before changing the functional mode or configuration of device.