This anomaly applies to IC Rev. Engineering A, build codes SICA-BAA.
Non-secure code is able to detect that a secure event has been published to a secure DPPI channel.
In a non-secure DPPI channel group, SUBSCRIBE_CHG[n].EN or SUBSCRIBE_CHG[n].DIS is setup to be connected to a secure DPPI channel.
Non-secure code can detect that a secure event has been published to a secure DPPI channel. The non-secure code cannot detect which event has been published.