Zynq UltraScale+ Devices Register Reference > Module Summary > A53_DBG_1 Module > LAR (A53_DBG_1) Register

LAR (A53_DBG_1) Register

LAR (A53_DBG_1) Register Description

Register NameLAR
Relative Address0x0000000FB0
Absolute Address 0x00FED10FB0 (CORESIGHT_A53_DBG_1)
Width32
TypewoWrite-only
Reset Value0x00000000
DescriptionExternal Debug Lock Access Register

LAR (A53_DBG_1) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
KEY31:0woWrite-only0Lock Access control. Writing the key value 0xC5ACCE55 to this field unlocks the lock, enabling write accesses to this components registers through a memory-mapped interface.Writing any other value to this register locks the lock, disabling write accesses to this components registers through a memory mapped interface.