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MSP430L092: MSP430L092

Part Number: MSP430L092


I need to check the BYPASS, SAMPLE/PRELOAD, EXTEST registers are working. How to set Vector pattens for the three operations. can you help me 

Thanks and Regards,


  • Hello Vino,

    Unfortunantly, I'm not sure what the BYPASS, SAMPLE/PRELOAD, and EXTEST registers are and I don't see any reference to them in the MSP430L092 datasheet or family User's Guide.  Can you clarify what you are asking? 



  • Hello JD,

    IEEE Std 1149.1 defines nine test instructions. Of the nine instructions, three are required(BYPASS, SAMPLE/PRELOAD, EXTEST) and six (INTEST, RUNBIST, CLAMP, HIGHZ, IDCODE, USERCODE)are optional.

    BYPASS= serial data to be transferred through the IC from TDI to TDO without affecting the operation of the IC

    SAMPLE/PRELOAD= selects the boundaryscan register to be connected between TDI and TDO. During this instruction, the boundaryscan register can be accessed via a data scan operation

    EXTEST=During this instruction, the boundary-scan register is accessed to drive test data offchip via the boundary outputs and receive test data off-chip via the boundary inputs

    these are the operations Is it possible for MSP430L092?



  • Hello Vinoth,

    Understood.  Unfortunately, the MSP430 does not suppost boundry scanning, with the exception of BYPASS.  There is more information here:



  • Hello JD,

    Thanks for your valuable replay,

    I need help to do the BYPASS register, How to access the JTAG pins because one pin having (SPI_CS/TCK/P2.0/TA0.2/TA1.2/TA1.1) this designnation and how to do Bypass by using vector set.