IPOTTcommunication is the silicon IP verificationproject the NESTOs: i2c and SPI.  There is a 400KHz 2pin I2C interface and a20MHz 4pin SPI interface.

The I2C is protected by a software lock protocol and communicates to the REGISTERMAP array.

The SPI is also protected by a software lock protocol. There is an extra pin UNLOCK  that can bypass the protocol.  Set UNLOCK=1 to bypass. The SPI communicates to the SPIMAP array.

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