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BQ40Z50-R1: BQ40Z50-R1 Programming specifications and memory description

Part Number: BQ40Z50-R1

Hello,

I have to develop a programming driver to write my customer's firmware in the internal memory of a BQ40Z50-R1 (using In-System Programming).
I think that I have to use the SMBus interface.
Unfortunately I cannot find any detailed description of the internal memory of this device and I cannot find its programming specifications.

May you share with me these pdf?

From the Technical Reference I can see that there is a Flash area after address 0x4000; my customer's firmware  has data to be programmed in these range of locations:
0x4000 - 0x5FFF
0x100000 - 0x10DFFF
0x140000 - 0x1401FF

Thank you and Best Regards,
Giovanni Salvador