Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 4/01/2024
Public

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5.8.7.3. Enabling the Controller

Program the ENABLE bit of the DEVICE_CTRL register to ‘1’ to enable the I3C controller. Programming of the ENABLE bit must be the last step before initiating any bus transfers including handling the IBIs.

Note:

If the DEVICE_CTRL[ENABLE] register is set to 0, the following effects occurs:

  • In master mode: No initiation of any transfer, including the generation of SCL on detection of a START condition of an IBI.
  • In slave mode: No ACK response to all the incoming transfer.