BHI260AP Fuser2 Product Identifier

Hi,

When attempting to read the Fuser2 Product Identifier from the BHI260AP using the 4 wire SPI interface I read a value of 0x80 instead of the expected 0x89.

The steps I am performing are as follows:

1. Write 0x01 to 0x14 to reset the device
2. Read Boot Status(0x25)  = 0x10 to verify that Host Interface is ready
3. Read Fuser2 Product Identifier (0x1C) = 0x80

What would cause the unexpected register value? I have attempted this on 2 different shuttle boards.

Please see attached logic analyser capture.

Thanks

-Chris