SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
Each VBGAPTS cell works in continuous conversion mode controlled by the corresponding FSM. This means that the temperature is measured at regular time intervals. The start of temperature measurement is initiated automatically by each FSM after it goes out of reset state. To control the main delay between two measurements the CTRL_CORE_BANDGAP_MASK_1[29:27] COUNTER_DELAY bit field is used. After this delay expires the five FSMs automatically start a temperature conversion.
The conversion is complete when the CTRL_CORE_TEMP_SENSOR_x[10] BGAP_EOCZ_x status bits are set to 0x0. After this the valid temperature is written automatically by each FSM in the CTRL_CORE_TEMP_SENSOR_x[9:0] BGAP_DTEMP_x bit fields, and then software is able to read it from the corresponding register. After writing the valid temperature values the five FSMs wait one clock cycle and start another conversion cycle.
For details regarding the CTRL_CORE_TEMP_SENSOR_x registers, see Table 18-9.