Zynq UltraScale+ Devices Register Reference > Module Summary > IOU_SCNTRS Module > current_counter_value_upper_register (IOU_SCNTRS) Register

current_counter_value_upper_register (IOU_SCNTRS) Register

current_counter_value_upper_register (IOU_SCNTRS) Register Description

Register Namecurrent_counter_value_upper_register
Relative Address0x000000000C
Absolute Address 0x00FF26000C (IOU_SCNTRS)
Width32
TyperwNormal read/write
Reset Value0x00000000
DescriptionReads or writes the upper 32 bits of the current counter value. The read-only programming interface can read but not write this register. The control interface must clear the CNTCR.EN bit before writing to this register.

current_counter_value_upper_register (IOU_SCNTRS) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
CNTCVU_U_3231:0rwNormal read/write0x0Current value of the timestamp counter, upper 32 bits. To change the current timestamp value, write the lower 32 bits of the new value to CNTCVL before writing the upper 32 bits to this register. The 64-bit timestamp value is updated with the value from both writes when this register is written to.