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Silicon Laboratories Si5397 Series, User Manual

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11.  Writing a New Frequency Plan or Device Configuration to Non-Volatile Memory (OTP)

Note: 

Writing to the device non-volatile memory (OTP is 

NOT

 the same as writing a configuration into the Si5397 using Clock- Builder-

PRo on the Si5397-A-EB. Writing a configuration into the EVB from ClockBuilderPro is done using Si5397 RAM space and can be done
a virtually unlimited numbers of times. Writing to OTP is limited as described below.
 

Refer to the Si534x/8x Family Reference Manuals and device data sheets for information on how to write a configuration to the EVB
DUT’s  non-volatile  memory  (OTP).  The  OTP  can  be  programmed  a  maximum  of 

two

  times  only.  Care  must  be  taken  to  ensure  the

desired configuration is valid when choosing to write to OTP.

UG353: Si5397 Evaluation Board User's Guide

Writing a New Frequency Plan or Device Configuration to Non-Volatile Memory (OTP)

silabs.com

 | Building a more connected world.

Rev. 0.1  |  25

Summary of Contents for Si5397 Series

Page 1: ...spectively For the purpose of this document the terms are synonymous in context KEY FEATURES Powered from USB port or external 5 V power supply via screw terminals Onboard 48 MHz XTAL allows standalone or holdover mode of operation on the Si5397 CBPro GUI programmable VDD supply allows device supply voltages of 3 3 2 5 or 1 8 V CBPro GUI programmable VDDO supplies allow each of the eight outputs t...

Page 2: ...0 CLKIN_0B CLKIN_1 CLKIN_1B CLKIN_2 CLKIN_2B Power Supply C8051F380 MCU Peripherals I2C SPI Bus VDDO_0 VDD_Core VDD_3 3 VDDO_1 VDDO_2 VDDO_3 VDDO_4 VDDO_5 VDDO_6 VDDO_7 VDDO_0 VDD_Core VDD_3 3 VDDO_1 VDDO_2 VDDO_3 VDDO_4 VDDO_5 VDDO_6 VDDO_7 Main USB Connector Aux USB Connector Ext 5V Connector I2C SPI Bus 5V_USB 5V_Aux 5V_Ext VDDMCU Input Clock 0 Input Clock 1 Input Clock 2 Output Clock 0 Output ...

Page 3: ...atics BOMs User s Guides and software can be found online at http www silabs com products clocksoscil lators pages si539x evb aspx UG353 Si5397 Evaluation Board User s Guide Si5397 A EVB Support Documentation and ClockBuilderPro Software silabs com Building a more connected world Rev 0 1 3 ...

Page 4: ...was installed 3 Leave the jumpers as installed from the factory and launch the ClockBuilderPro software 4 You can use ClockBuilderPro to create download and run a frequency plan on the Si5397 A EB 5 For the Si5397 data sheet go to http www silabs com timing UG353 Si5397 Evaluation Board User s Guide Quick Start silabs com Building a more connected world Rev 0 1 4 ...

Page 5: ...n O JP31 2 pin O JP10 2 pin I JP32 2 pin O JP13 2 pin O JP33 2 pin O JP14 2 pin I JP34 2 pin O JP15 3 pin all open JP35 2 pin O JP16 3 pin 1 to 2 JP36 2 pin O JP17 2 pin O JP38 3 pin All Open JP18 2 pin O JP39 2 pin O JP19 2 pin O JP40 2 pin I JP20 2 pin O JP41 2 pin I JP21 2 pin O J36 5 x 2 Hdr All 5 installed JP22 2 pin O Note 1 Refer to the Si5397 A EB schematics for the functionality associate...

Page 6: ... Blue Loss of Lock _ DSPLL D D27 D22 and D26 are illuminated when USB 5 V Si5397 3 3 V and Si5397 Vcore supply voltages respectively are present D25 D21 and D24 are status LEDs showing onboard MCU activity D2 indicates loss of signal at XAXB input either crystal osc or external reference D5 D6 D8 D12 indicate loss of lock for one of four internal DSPLLs A D D11 indicates the Si5397 interrupt outpu...

Page 7: ...oldover modes The Si5397 A EB can also accommodate an external reference clock instead of a crystal To evaluate the device with an external REFCLK C111 and C113 must be populated and XTAL Y1 removed see figure below The REFCLK can then be applied to SMA connectors J39 and J40 Figure 6 1 External Reference Input Circuit UG353 Si5397 Evaluation Board User s Guide External Reference Input XA XB silab...

Page 8: ...d This represents four differential input clock pairs Single ended clocks can be used by appropriately driving one side of the differential pair with a single ended clock For details on how to con figure inputs as single ended please refer to the Si5397 data sheet Figure 7 1 Input Clock Termination Circuit UG353 Si5397 Evaluation Board User s Guide Clock Input Circuits INx INxB silabs com Building...

Page 9: ... can be replaced with a resistor of appropriate value The Si5397 A EB provides pads for optional output termination resistors and or low frequency capacitors Note that components with a schematic NI designation are not normally populated on the Si5397 A EB and provide locations on the PCB for optional dc ac terminations by the end user Figure 8 1 Output Clock Termination Circuit UG353 Si5397 Evalu...

Page 10: ...tp www silabs com CBPro and download the ClockBuilder Pro software Installation instructions and User s Guide for ClockBuilderPro can be found at the download link shown above UG353 Si5397 Evaluation Board User s Guide Installing ClockBuilderPro CBPro Desktop Software silabs com Building a more connected world Rev 0 1 10 ...

Page 11: ...PC Once ClockBuilderPro software is installed connect to the EVB with a USB cable as shown in the figure below Figure 10 1 EVB Connection Diagram UG353 Si5397 Evaluation Board User s Guide Using the Si5397 EVB silabs com Building a more connected world Rev 0 1 11 ...

Page 12: ...working with a USB 2 0 port and you are current limited turn off enough DUT output voltage regulators to drop the total DUT current 470 mA Note USB 2 0 ports may supply 500 mA Provided the nominal 5 V drops gracefully by less than 10 the EVB will still work If you are working with a USB 2 0 and you are current limited and need all output clock drivers enabled reconfigure the EVB to drive the DUT o...

Page 13: ...gn Export create in system programming Figure 10 4 Application 2 EVBGUI Use the EVB GUI to Download configuration to EVB s DUT Si5397 Control the EVB s regulators Monitor voltage current and power on the EVB UG353 Si5397 Evaluation Board User s Guide Using the Si5397 EVB silabs com Building a more connected world Rev 0 1 13 ...

Page 14: ... detail in the following sections 10 5 Workflow Scenario 1 Testing a Silicon Labs Default Configuration The flow for using the EVB GUI to initialize and control a device on the EVB is as follows Once the PC and EVB are connected launch ClockBuilderPro by clicking this icon on your PC s desktop Figure 10 5 ClockBuilderPro Desktop Icon If an EVB is detected click on the Open Default Plan button on t...

Page 15: ... for the DUT type mounted on the EVB Figure 10 8 Writing Design Status After CBPro writes the default plan to the EVB click on Open EVB GUI as shown below Figure 10 9 Open EVB GUI The EVB GUI will appear Note that all power supplies will be set to the values defined in the device s default CBPro project file created by Silicon Labs as shown in the following figure UG353 Si5397 Evaluation Board Use...

Page 16: ...Figure 10 10 EVB GUI Window UG353 Si5397 Evaluation Board User s Guide Using the Si5397 EVB silabs com Building a more connected world Rev 0 1 16 ...

Page 17: ...icon Labs created default plan into the DUT s register space you must go back to the Wizard s main menu and select Write Design to EVB as shown below Figure 10 11 Write Design to EVB Failure to perform this step will cause the device to read in a preprogrammed plan from its non volatile memory NVM However the plan loaded from the NVM may not be the latest plan recommended by Silicon Labs for evalu...

Page 18: ...ll appear in a new window as shown below Compare the observed output clocks to the frequen cies and formats noted in your default project s Design Report UG353 Si5397 Evaluation Board User s Guide Using the Si5397 EVB silabs com Building a more connected world Rev 0 1 18 ...

Page 19: ...n Assuming you connect the correct input clocks to the EVB as noted in the Design Report shown above the DUT on your EVB will be running in locked mode UG353 Si5397 Evaluation Board User s Guide Using the Si5397 EVB silabs com Building a more connected world Rev 0 1 19 ...

Page 20: ...ick on the links below under Edit Configuration with Wizard Figure 10 14 Edit Configuration with Wizard You will now be taken to the Wizard s step by step menus to allow you to change any of the default plan s operating configurations UG353 Si5397 Evaluation Board User s Guide Using the Si5397 EVB silabs com Building a more connected world Rev 0 1 20 ...

Page 21: ...id After making your desired changes you can click on Write to EVB to update the DUT to reconfigure your device real time The Design Write status win dow will appear each time you make a change Figure 10 16 Writing Design Status UG353 Si5397 Evaluation Board User s Guide Using the Si5397 EVB silabs com Building a more connected world Rev 0 1 21 ...

Page 22: ... file design file in the Windows file browser Figure 10 18 Browse to Project File Select Yes when the WRITE DESIGN to EVB popup appears Figure 10 19 Write Design to EVB Dialog The progress bar will be launched Once the new design project file has been written to the device verify the presence and frequencies of your output clocks and other operating configurations using external instrumentation UG...

Page 23: ...at suitable for in system programming by selecting Export as shown below Figure 10 20 Export Register Map File You can now write your device s complete configuration to file formats suitable for in system programming UG353 Si5397 Evaluation Board User s Guide Using the Si5397 EVB silabs com Building a more connected world Rev 0 1 23 ...

Page 24: ...Figure 10 21 Export Settings UG353 Si5397 Evaluation Board User s Guide Using the Si5397 EVB silabs com Building a more connected world Rev 0 1 24 ...

Page 25: ...nlimited numbers of times Writing to OTP is limited as described below Refer to the Si534x 8x Family Reference Manuals and device data sheets for information on how to write a configuration to the EVB DUT s non volatile memory OTP The OTP can be programmed a maximum of two times only Care must be taken to ensure the desired configuration is valid when choosing to write to OTP UG353 Si5397 Evaluati...

Page 26: ...r and the Si5397 device is the SPI slave The Si5397 device can also support a 2 wire I2C serial interface al though the Si5397 A EB does NOT support the I2C mode of operation SPI mode was chosen for the EVB because of the relatively higher speed transfers supported by SPI vs I2C UG353 Si5397 Evaluation Board User s Guide Serial Device Communications silabs com Building a more connected world Rev 0...

Page 27: ... silabs com products clocksoscilla tors pages si539x evb aspx Note Please be aware that the Si5397 A EB schematic is in OrCad Capture hierarchical format and not in a typical flat schematic format UG353 Si5397 Evaluation Board User s Guide Si5397 EVB Schematic Layout and Bill of Materials BOM silabs com Building a more connected world Rev 0 1 27 ...

Page 28: ...ot imply or express copyright licenses granted hereunder to design or fabricate any integrated circuits The products are not designed or authorized to be used within any Life Support System without the specific written consent of Silicon Labs A Life Support System is any product or system intended to support or sustain life and or health which if it fails can be reasonably expected to result in si...

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