ASROCK Intel W790 Series Software Setup Manual page 31

Intel W790 Series
Secondary Timing
Write Recovery Time (tWR)
The amount of delay that must elapse after the completion of a valid write operation, before
an active bank can be precharged.
Refresh Cycle Time 2 (tRFC)
The number of clocks from a Refresh command until the first Activate command to the
same rank.
Refresh Cycle Time 2 (tRFC2)
The number of clocks from a Refresh command until the first Activate command to the
same rank.
Refresh Cycle Time per Bank (tRFCpb)
The number of clocks from a Refresh command (per bank) until the first Activate
command to the same rank.
RAS to RAS Delay (tRRD_L)
The number of clocks between two rows activated in different banks of the same rank.
RAS to RAS Delay (tRRD_S)
The number of clocks between two rows activated in different banks of the same rank.
Read to Precharge (tRTP)
The number of clocks that are inserted between a read command to a row pre-charge
command to the same rank.
Four Activate Window (tFAW)
The time window in which four activates are allowed the same rank.
CAS Write Latency (tCWL)
Configure CAS Write Latency.
Third Timing
tREFI
Configure refresh cycles at an average periodic interval.
tREF Block
Configure the Number of H clocks to block scheduler before checking returned safe
signals.
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