Freescale Semiconductor MPC8313E PowerQUICC II Pro Family Reference Manual page 435

SDRAM clock
MCS
MRAS
MCAS
MA n
MWE
MDQ n
MDQS
MDM[0:3]
Figure 9-24. DDR SDRAM Single-Beat (Double Word) Write Timing—ACTTOR
SDRAM Clock
MCS0
MCS1
MRAS
MCAS
MA n
MWE
MDQ[0:63]
MDQS
MDM[0:7]
Figure 9-25. DDR SDRAM Single-Beat (Double Word) Write Timing—ACTTORW = 3
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
Freescale Semiconductor
0 1 2 3 4
ACTTORW
ROW COL
D0 D1 D2 D3
0
0 1 2 3 4
ACTTORW
ROW ROW COL
5 6 7 8
PRECHARGE
WRREC
A10=0
F F F
5 6 7 8
COL COL
D0 D1 D2 D3 D0 D1 D2 D3
00
DDR Memory Controller
9 10 11 12
PRETOACT
ROW
9 10 11 12
COL
D0 D1 D2 D3 D0 D1 D2 D
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