CDB5460A Datasheet, PDF (14/28 Pages) Cirrus Logic – Evaluation Board and Software

CDB5460A
2.6.1 Single Conversion Button
On pressing this button, single conversions will be
performed repeatedly until the user presses the
Stop button. After each conversion is complete, the
Result data column will update with the values
present in each data register. The Mean and Stan-
dard Deviation columns will update every N cy-
cles, where N is the number in the Samples to
Average box. Note that it can take many collection
cycles after pressing the Stop button before the data
actually stops being collected.
2.6.2 Continuous Conversions Button
This button functions similarly to the Single Con-
version button, except that continuous conversions
are performed instead. The data on the screen is up-
dated in the same fashion, and the Stop button ter-
minates this action. There are some speed
limitations when performing this function, and if
any of these limitations are exceeded, the user will
be prompted to change some settings before pro-
ceeding.
2.6.3 Re-Initialize Serial Port Button
When this button is pressed, the software will send
the synchronization sequence discussed in the
CS5460A data sheet to the part. This sequence
brings the CS5460A’s serial port back to a known
state. It does not reset any of the registers in the
part.
2.6.4 Standby / Sleep Mode Buttons
When these buttons are pressed, the part will enter
either Standby or Sleep power saving modes. To
return to normal mode, use the Power Up button.
2.6.5 Power Up Button
This button is used to send the Power Up/Halt com-
mand to the CS5460A. The part will return to nor-
mal operating mode and halt any conversions that
are being done at this time.
2.7 Viewing Pulse Rate Output Data
The CS5460A features a pulse-rate energy output.
The CDB5460A has the capability to demonstrate
the functionality of this output in the Pulse Rate
Output Window (Figure 5). The Pulse Rate Output
Window can be accessed by pressing the F4 key, or
by pulling down the Menu option, and selecting
Pulse Rate Window.
Figure 5. Pulse Rate Output Window
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