Because the MAX31865 powers up with the internal BIAS disabled and the Conversion Mode off, these control bits will first need to be set in the Configuration register before a temperature conversion can be executed. Once the MAX31865 has reached minimum VDD, the Configuration Register must be written to in order to enable the internal BIAS voltage (required for conversions). The user must also determine if they are going to operating in Continuous Conversion Mode or request conversions using the 1-Shot bit. Either way, once the desired mode is selected and a conversion is initiated, the user can expect a conversion result in 55ms if the 60Hz notch filter is selected, or in 66ms if the 50Hz notch filter is selected. After this conversion time, the user may clock out the conversion result over the SPI bus, the time required for that depending on the SPI clock speed.