SWCU191 February 2022 CC1311P3 , CC1311R3 , CC2651P3 , CC2651R3 , CC2651R3SIPA
The Key Store Read Area register selects the Key Store RAM area from where the key must be read that is used for an AES operation. The operation starts directly after writing this register. When the operation is finished, the status of the Key Store read operation is available in the IRQSTAT Interrupt Status register. Key Store Read Error asserts when a RAM area is selected that does not contain a valid written key.
For more details, see Section 13.9.1.