Texas Instruments ADS1x48EVM, User Manual, Page: 35 / 48

4.3.1.1 Read Register Options
As stated in the previous section, the default GUI configuration has the Auto Read functionality turned off
and instead manually reads the registers using the READ REGISTER and READ ALL REGISTERS buttons.
The READ REGISTER button reads only the selected register. The READ ALL REGISTERS button reads
all available ADS1x48 registers. The advantage of manually reading the register contents is reduced USB
communication between the ADS1x48EVM and the GUI.
The registers can be read automatically from the ADS1x48 at a variety of intervals from once per second to
as fast as possible. As shown in
Figure 4-12 , the intervals can be reviewed and selected using the Auto Read
drop-down menu. The READ REGISTER and READ ALL REGISTER button options are only enabled when the
Auto Read selection is turned off.
Figure 4-12. Auto Read Options
4.3.1.2 Write Register Options
The GUI default option for register writes is Immediate Write . When Immediate Write is selected, any register
configuration changes are immediately written from the GUI to the ADS1x48 device. Using the Immediate Write
option ensures that what is being displayed in the register map view is how the ADS1x48 is configured. If
the write register drop-down menu selection is for a
Deferred Write as shown in Figure 4-13 , then the write
register buttons WRITE REGISTER and WRITE ALL REGISTERS are enabled. Similar to the functionality of the
read register buttons, the WRITE REGISTER button writes the configuration for the currently selected register.
Comparatively, selecting the WRITE ALL REGISTERS button writes to all configurable registers.
Figure 4-13. Register Write Options
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SBAU378A – SEPTEMBER 2021 – REVISED JANUARY 2022
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ADS1x48EVM Evaluation Module 35
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