Foxconn A85GM English Manual. - Page 40
► tWTR Internal Write to Read Command Delay
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3 This item allows you to select the row precharge time (in clock cycles). ► tRTP (Internal Read to Precharge Command Delay) Internal READ Command to PRECHARGE Command delay. ► TRAS (Active-to-Precharge Delay) This item allows you to set the minimum RAS# active time (in clock cycles). ► TRC (Active-to-Active/Auto-Refresh Command Period) This item allows you to set the row cycle time (in clock cycles). tRC = tRAS + tRP. ► tWR (Write Recovery) This item allows you to select the write recovery time (in clock cycles). ► TRRD (Active-to-Active of a Different Bank) This item allows you to select a delay time (in clock cycles) between the RAS# and RAS# strobe signals. ► tRWTTO (Read-to-Write Turnaround for Data) This timing parameter ensures read-to-write data-bus turnaround. ► TwrrD (Write to Read DIMM Termination Turn-around) This timing parameter accounts for termination timing when a write is followed by a read to a different DIMM. ► tWTR (Internal Write to Read Command Delay) This item allows you to select a delay time (in clock cycles) between sending the last data from a write operation to the memory and issuing a read command. ► Twrwr (Write to Write Timing) This timing parameter accounts for turn-around timing when a write is followed by a write to a different DIMM. ► Trdrd (Read to Read Timing) This timing parameter accounts for turn-around and termination timing when a read is followed by a read to a different chip select. ► tRFC0, 1, (Auto-Refresh-to-Active/Auto-Refresh Command Period) Refresh to Refresh or Refresh to Active command interval. Trfc1: auto-refresh row cycle time for logical DIMM 1 Trfc0: auto-refresh row cycle time for logical DIMM 0 33