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BQ34110: TRM says read/write of data flash is valid in sealed mode but that isn't true is it?

Mark Scovel
Intellectual 595 points
Part Number: BQ34110

Table 3.1 of TRM shows

ManufacturerAccessControl()                  0x3E and 0x3F                RW
MACData()                                               0x40 through 0x5F          RW

But it appears that when a device is sealed reading data flash version does not work.

Please confirm?

  • 0
    TI__Expert 4640 points
    Hi Mark,

    The TRM shows RW for both the ManufacturerAccessControl() & MACData() as there are some "sub commands" that are RW'able while others are not RW. For instance authentication is one of those where you can write to the ManufacturerAccessControl() to do authentication when in SEALED mode.

    We currently don't have a table of which commands are RW, but i encourage to go down to each section and those explain further what you can write to them and those that you can't.

    Thanks

    Miguel