MC33771B - SPI response format

[Patrick_Pavle]

Dear Community,

The format is sent from the MCU to the MC33771B as far as I understand.
But I don't know exactly how it is described, i.e. where I can find memory data, master/slave, memory address, device address, command and crc.
Can someone please enlighten me and help me. Thank you!

best regards,

Patrick

[diazmarin09]

Hello Patrick_Pavle,

I hope all is great with you. Thank you for using the NXP communities.

You are correct, for message integrity and communication robustness, each SPI transmit message consists of six fields containing 40 bits.

In this case, I do recommend downloading the BCC SW Driver package for MC33771B/MC33772B from the link below and use the code as a reference for your design.

Embedded SW: Battery Cell Controller Software Driver for MC33771B/MC33772B

As you may noticed from the documentation, TX SPI bus always performs only one 40b SPI transfer.

I hope this information helps.

Regards,

David

[Kathirvel_M]

Where you get this Information and How can i get MC33771B Data Sheet. I found only MC33771 Short Data sheet only. 

[Patrick_Pavle]

Dear @Kathirvel_M ,

You can find the table shown above under the link Embedded SW: Battery Cell Controller Software Driver for MC33771B/MC33772B ,in the Programmer_Guide folder and the PDF is called PG_BCC. On page 18 you will find the parameters shown

You need an NDA for the complete data sheet of MC33771B.

best regards,

Patrick