Datasheet
TI ClockPro™ Programming Software
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serial interface pins.
If SPICON is logic 0, the serial control interface is enabled. In this case, S1 is used as SDA, and S2 is
used as SCL. For the internal logic, S1 and S2 are considered to be "0". This means that either control
pin selection "000" or "001" is active, depending on the logic level at S0.
If SPICON is logic 1, S1 and S2 are used as control pins, and the serial interface is disabled. The
internal logic S1 and S2 are considered to be 0 or 1, according to the logic level that is connected to
these pins. In this case, up to eight different device setups can be selected through S2, S1, and S0.
The SPICON configuration is possible in the generic control register (GCR). For the EVM default
configuration, SPICON is logic 0. This results in S0 = 1, S1 = 0, S2 = 0, according to the default
jumper setting on the EVM.
If Vdd is connected and Vddout is forced to GND, S1, and S2 act as serial interface pins – even if
SPICON is logic 1. This allows reprogramming the device, if the control pin functionality is enabled. For
more information, see the CDCE(L)9xx data sheet.
12. Select Device chooses the device where all the actions are performed.
13. Refresh devices button. When pressed, it looks for the EVMs connected.
14. Solution selection shows the solution generated by the Wizard View (Figure 5).
15. List of devices shows those devices that are part of the solution selected in (14).
16. Select button. When it is pressed, the selected device in (15) are loaded in the program.
17. Life update. When checked and the device selected, all changes in the setup (Wizard View (Figure 8)
or Direct Register View (Figure 9) are automatically written to the control register.
18. Limited Ranges Mode. When checked when a setup is loaded or a change is performed in the setup,
the change is ensured to be within the specifications. If not checked, the verification of settings within
specifications is skipped.
19. Reset PPM Reference. The ppm is calculated with respect to the requested output frequency in the
Wizard View. After this button is pressed, the ppm is calculated with respect to the output frequency
when that occurred.
20. Current status
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CDCE(L)9xx Performance Evaluation Module SCAU022A–July 2007–Revised July 2010
Copyright © 2007–2010, Texas Instruments Incorporated