[43] QSPI: Reading QSPI registers after XIP might halt application CPU

This anomaly applies to IC Rev. Rev 1, build codes QKAA-D00.

It was inherited from the previous IC revision Engineering D.

Domains

Application

Symptoms

Application CPU halts.

Conditions

Init and start QSPI, use XIP, then write to or read any QSPI register starting from offset 0x600 and above.

Consequences

Application CPU halts.

Workaround

Trigger QSPI TASKS_ACTIVATE after XIP is used before accessing any QSPI register with an offset above 0x600.