VREF

Voltage References System (VREF) Control

  0x40 32 Write-Protected 0x0XXX0000  
Parent topic: Register Description

Voltage References System (VREF) Control

Bit  31 30 29 28 27 26 25 24  
            CALIB[10:8]  
Access            R/W R/W R/W  
Reset            x x x  
Bit  23 22 21 20 19 18 17 16  
  CALIB[7:0]  
Access  R/W R/W R/W R/W R/W R/W R/W R/W  
Reset  x x x x x x x x  
Bit  15 14 13 12 11 10 9 8  
                   
Access                   
Reset                   
Bit  7 6 5 4 3 2 1 0  
            BGOUTEN TSEN    
Access            R/W R/W    
Reset            0 0    

Bits 26:16 – CALIB[10:0]: Bandgap Voltage Generator Calibration

Bandgap Voltage Generator Calibration

These bits are used to calibrate the output level of the bandgap voltage reference. These bits are loaded from Flash Calibration Row at start-up.

Bit 2 – BGOUTEN: Bandgap Output Enable

Bandgap Output Enable

ValueDescription
0 The bandgap output is not available as an ADC input channel
1 The bandgap output is routed to an ADC input channel

Bit 1 – TSEN: Temperature Sensor Enable(1)

Temperature Sensor Enable

(1)

Note: As explained in the Disclaimer for the AEC-Q100 Electrical characteristics at 125°C, the Temperature Sensor (TSENS) feature must not be used with AECQ100 parts.
ValueDescription
0 Temperature sensor is disabled
1 Temperature sensor is enabled and routed to an ADC input channel