SI5347 Datasheet, PDF (42/59 Pages) Silicon Laboratories – DUAL/QUAD DSPLL ANY-FREQUENCY, ANY-OUTPUT JITTER ATTENUATORS

Si5347/46
5.13. How to Enable Features and/or Configuration Settings Not Available in
ClockBuilder Pro for Factory Pre-programmed Devices
As with essentially all modern software utilities, ClockBuilder Pro is continuously updated and enhanced. By
registering at www.silabs.com, you will be notified whenever changes are made and what the impact of those
changes are. This update process will ultimately enable ClockBuilder Pro users to access all features and register
setting values documented in this data sheet and the Si347/46 Family Reference Manual.
However, if you must enable or access a feature or register setting value so that the device starts up with this
feature or a register setting, but the feature or register setting is not yet available in CBPro, you must contact a
Silicon Labs applications engineer for assistance. One example of this type of feature or custom setting is the
customizable output amplitude and common voltages for the clock outputs. After careful review of your project file
and requirements, the Silicon Labs applications engineer will email back your CBPro project file with your specific
features and register settings enabled using what is referred to as the manual "settings override" feature of CBPro.
"Override" settings to match your request(s) will be listed in your design report file. Examples of setting "overrides"
in a CBPro design report are shown in Table 16.
Table 16. Setting Overrides
Location
0x0535[0]
0x0B48[4:0]
Customer Name
FORCE_HOLD_PLLB
OOF_DIV_CLK_DIS
Engineering Name
OLA_HO_FORCE
OOF_DIV_CLK_DIS
Type
No NVM
User
Target Dec Value Hex Value
N/A
1
0x1
OPN&EVB
31
0x1F
Once you receive the updated design file, simply open it in CBPro. The device will begin operation after startup
with the values in the NVM file. The flowchart for this process is shown in Figure 28.
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