|Home > Register descriptions > AArch64 system registers > DCZID_EL0, Data Cache Zero ID Register, EL0|
The DCZID_EL0 indicates the block size written with byte values of zero by the
DC ZVA (Data Cache Zero by Address) system instruction.
DCZID_EL0 is a 32-bit register, and is part of the Identification registers functional group.
This register is Read Only.
Log2 of the block size in words:
|The block size is 16 words.|
There are no configuration notes.
Bit fields and details not provided in this description are architecturally defined. See the Arm® Architecture Reference Manual Armv8, for Armv8-A architecture profile.