Datasheet

Rev. 1.4 May 2009
FBDIMM
DDR2 SDRAM
9 of 42
2.6 Basic Timing Diagram
Figure 7. Basic DRAM Read Data Transfers on FBD
Figure 8.
Back to Back DRAM Read Data Transfers
ACT1
NOP
NOP
ACT1
12345
FBD southbound
cmd/data
DIMM 1 cmd
DIMM 1 data
DIMM 2 cmd
DIMM 2 data
FBD northbound
data
6 7 8 9 10 11 12 13
RD1
NOP
NOP
RD1
ACT1
NOP
NOP
ACT1
12345
FBD southbound
cmd/data
DIMM 1 cmd
DIMM 1 data
DIMM 2 cmd
DIMM 2 data
FBD northbound
data
12345678910111213
RD1
NOP
NOP
RD1
ACT2
NOP
NOP
RD2
NOP
NOP
ACT2 RD2
No Bubble