SI5341 Datasheet, PDF (38/56 Pages) Silicon Laboratories – LOW-JITTER, 10-OUTPUT, ANY-FREQUENCY, ANY-OUTPUT CLOCK GENERATOR

Si5341/40
5.10. Enabling Features and/or Configuration Settings Not Available in ClockBuilder Pro
for Factory Pre-programmed Devices
As with essentially all software utilities, ClockBuilder Pro is continuously updated and enhanced. By registering at
www.silabs.com and opting in for updates to software, 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 Si5341/40 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. An example of this type of feature or custom setting is the
customizable amplitudes for the clock outputs. After careful review of your project file and custom requirements, a
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 below:
Setting Overrides
Location
Customer Name
Engineering Name
0x0435[0] FORCE_HOLD_PLLA
0x0B48[0:4] OOF_DIV_CLK_DIS
OLA_HO_FORCE
OOF_DIV_CLK_DIS
Type
No NVM
User
Target
N/A
OPN & EVB
Dec
Value
1
0
Hex
Value
0x1
0x00
Once you receive the updated design file, simply open it in CBPro. After you create a custom OPN, the device will
begin operation after startup with the values in the NVM file, including the Silicon Labs-supplied override settings.
Start
Place sample
order
Do I need a
pre‐programmed device
with a feature or setting
which is unavailable in
ClockBuilder Pro?
No
Configure device
using CBPro
Generate
Custom OPN
in CBPro
Yes
Contact Silicon Labs
Technical Support
to submit & review
Yes
your
non‐standard
configuration
request & CBPro
project file
Receive
updated CBPro
project file
from
Silicon Labs
with “Settings
Override”
Load project file
into CBPro and test
Does the updated
CBPro Project file
match your
requirements?
Figure 18. Flowchart to Order Custom Parts with Features not Available in CBPro
38
Rev. 1.0