ERXFR_EL1, Selected Error Record Feature Register, EL1
Register ERXFR_EL1 accesses the ERR<n>FR feature register for the error record selected by ERRSELR_EL1.SEL.
If ERRSELR_EL1.SEL==0, then ERXFR_EL1 accesses the ERR0FR register of the core error record. See ERR0FR, Error Record Feature Register.
If ERRSELR_EL1.SEL==1, then ERXFR_EL1 accesses the ERR1FR register of the DSU error record. See the Arm® DynamIQ™ Shared Unit Technical Reference Manual.