6. Tweaker Menu | 41
Z590I VALKYRIE
tCPDED
This item Holds DDR timing parameter tCPDED. Power down to command bus tri-state delay in
tCK cycles (for DDR4) supported Range is 1-7 in 1N mode.
Options: Auto (Default)
tAONPD
This item Holds DDR timing parameter tAONPD. Supported range is 4-30.
Options: Auto (Default)
tREFIx9
This item maximum time allowed between refreshes to a rank (in intervals of 1024 DCLK cycles).
Should be programmed to 8* tREFI/ 1024 (to allow for possible delays from ZQ or ISOC)
Options: Auto (Default)
tXSDLL
This item delay between DDR SR exit and the first command that requires data RD / WR from
DDR.
Options: Auto (Default)
tZQOPER
This item defines the period required for ZQCL after SR exit.
Options: Auto (Default)
tMOD
The time between MRS command and any other command in DCLK cycles.
Options: Auto (Default)
tZQCS
This item for DDR4 holds tCK value in DCLK cycles.
Options: Auto (Default)
Misc Configuration
RttWr
Options: Auto (Default)
RttNom
Options: Auto (Default)
