Datasheet

PGA400 EVM User Guide
TI CONFIDENTIAL – NDA Restrictions
Page 30 of 50
7.2.3.4 Offset PTAT Compenstation Adjust Up/Down
The “Coarse” Up/Down and “Fine” Up/Down buttons are used to adjust the value of the PTAT
offset register up or down in set increments. The buttons write to the PTAT offset bits in ESFRs
0xA4 or 0xA6 depending on the state of the “Sensor Select” combo-box. The “Fine” adjustments
move the PTAT offset value by one, while the “Coarse” buttons move the PTAT offset value by
50.
7.3 PSMON/AFE Diagnostics Tab
The PSMON/AFE Diagnostics tab is the second tab in the right half tab control. The tab is setup
so that when activated, any flags that are currently set are displayed in red, while all of the bits
that don’t have flags set are green. In the image below of the PSMON/AFE Diagnostics tab the
“ADC Input Over-Voltage” flag is set showing that the input to the ADC is out of range. All of the
power supply’s are in the correct range so none of the flags are set. A description of the buttons
on the tab can be found below.
Figure 23. PSMON/ AFE Diagnostics Tab