|Home > Register Descriptions > AArch32 system registers > FCSEIDR, FCSE Process ID Register|
The FCSEIDR identifies whether the Fast Context Switch Extension (FCSE) is implemented.
FCSEIDR is a 32-bit register, and is part of the Legacy feature registers functional group.
|Reserved, read-as-zero/write ignore.|
There is one instance of this register that is used in both Secure and Non-secure states.
Bit fields and details not provided in this description are architecturally defined. See the Arm® Architecture Reference Manual Armv8, for Armv8-A architecture profile.