During bus initialization, the I3C Master assigns a 7-bit Dynamic Address to each Device on the I3C Bus. For this to happen, each Slave device must have a 48-bit Provisional ID (that is, provisioned with its ID). The Provisional ID has multiple fields, including MIPI Manufacturer ID and a vendor-defined part number. The I3C Slave may also have a static address, which if the Master knows it, allows for faster assignment of the Dynamic Address.

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