mpc8555e Freescale Semiconductor, Inc, mpc8555e Datasheet - Page 20

• Manufacturer Part Number: mpc8555e
• Description: Mpc8555e Powerquicc Iii Processor With Integrated Security
• Manufacturer: Freescale Semiconductor, Inc

DDR SDRAM
Figure 4
Figure 5
20
ADDR/CMD
MDQS[n]
MDQ[x]
MCK[n]
MCK[n]
MPC8555E PowerQUICC™ III Integrated Communications Processor Hardware Specification, Rev. 4.2
shows the DDR SDRAM output timing for address skew with respect to any MCK.
shows the DDR SDRAM output timing diagram for the source synchronous mode.
Figure 5. DDR SDRAM Output Timing Diagram for Source Synchronous Mode
Write A0
Figure 4. Timing Diagram for t
t
DDKHMP
ADDR/CMD
ADDR/CMD
MCK[n]
MCK[n]
t
t
DDKHDX
DDKHAS
t
MCK
,t
NOOP
DDKHCS
t
t
D0
DDKHAX
DDKHMH
t
AOSKEWmax)
t
t
DDKHDS
AOSKEW(min)
,t
CMD
DDKHCX
D1
CMD
t
MCK
AOSKEW
t
DDKLDS
t
DDKLDX
NOOP
Measurement
NOOP
Freescale Semiconductor
t
DDKLME