MPC8548E Freescale, MPC8548E Datasheet - Page 24
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MPC8548E
Manufacturer Part Number
MPC8548E
Description
Integrated Processor
Manufacturer
Freescale
Datasheet
1.MPC8548E.pdf
(142 pages)
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DDR and DDR2 SDRAM
Figure 4
Figure 5
24
ADDR/CMD
shows the DDR SDRAM output timing diagram.+
provides the AC test load for the DDR bus.
MDQS[ n ]
MDQ[x]
MCK[ n ]
MCK[ n ]
MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 4
Output
Figure 4. DDR SDRAM Output Timing Diagram
Write A0
t
DDKHMP
t
DDKHAS
Figure 5. DDR AC Test Load
t
Z
MCK
0
= 50 Ω
t
, t
DDKHDX
NOOP
DDKHCS
t
DDKHAX
D0
, t
DDKHCX
t
t
DDKHDS
DDKHMH
D1
R
L
t
= 50 Ω
DDKLDS
t
DDKLDX
GV
DD
/2
Freescale Semiconductor
t
DDKHME