DFI LANParty UT ICFX3200-T2/G, User Manual

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3
BIOS Setup
RAS# Precharge Time (TRP)
This field controls RAS# precharge (in local memory clocks). The op-
tions are Slow and Fast.
Cycle Time (TRAS)
Refresh cycle time is the time measured on a given role from REF
command to the following ACT at the same row. It is tracked separately
from tRC to DDR SDRAM. For DDR33, normally, 72ns (256Mb-512Mb)
is set at 12 clock while 120ns (1Gb) is set at 20 clock.
Row Cycle Time (TRC)
This field is used to select the row cycle time, RAS# active or auto
refresh of the same bank.
Refresh to Active (TRFC)
This field is used to select the row refresh cycle time. Auto refresh active
to RAS# active or RAS# to auto refresh - similar to TRC.
Bank to Bank Cmd (TRRD)
Leave this in its default setting.
Write Recovery (TWR)
This field is used to select the write recovery time when the DRAM
safely registers the last write data. This is the time from the last write
data to precharge.
Read-Write Command (TRTW)
Leave this in its default setting.
Write-Write CS (TWTW_CS)
Leave this in its default setting.
Write-Read Command (TWTR)
This field is used to select the write to read delay time. This is measured
from the rising edge of the last non-masked data strobe to the rising
edge of the next read command.