Zynq UltraScale+ Devices Register Reference > Module Summary > EFUSE Module > SYSOSC_CTRL (EFUSE) Register

SYSOSC_CTRL (EFUSE) Register

SYSOSC_CTRL (EFUSE) Register Description

Register NameSYSOSC_CTRL
Relative Address0x000000101C
Absolute Address 0x00FFCC101C (EFUSE)
Width32
TyperoRead-only
Reset Value0x00000000
DescriptionSysOsc Clock Control

SYSOSC_CTRL (EFUSE) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
Reserved31:5roRead-only0x0reserved.
Reserved 4roRead-only0x0reserved.
Reserved 3roRead-only0x0reserved.
Reserved 2roRead-only0x0reserved.
Reserved 1roRead-only0x0reserved.
SYSOSC_EN 0roRead-only0x0Indicates boot clock source:
0: PS_REF_CLK
1: SYSOSC (on-chip clock)