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1.3.6. APB Interface

The CG092 configuration and status registers can be accessed by the APB interface. The APB slave interface of the CG092 conforms to the AMBA APB Protocol Specification v2.0. with the following limitations:

  • PSTRB input is ignored.

  • PSLVERR is tied to LOW inside the CG092. The design never indicates transfer failure.

  • Only PPROT[0] protection type is handled. Both normal and privileged reads give back the right register value but only privileged write accesses can write the registers. Non-privileged write accesses are ignored and no transfer failure is indicated on PSLVERR.

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