MPC8358 FREESCALE [Freescale Semiconductor, Inc], MPC8358 Datasheet - Page 22

• Manufacturer Part Number: MPC8358
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

DDR and DDR2 SDRAM
Figure 5
Figure 6
22
MPC8358E PowerQUICC™ II Pro Processor Revision 2.1 PBGA Silicon Hardware Specifications, Rev. 1
shows the DDR SDRAM output timing for address skew with respect to any MCK.
provides the AC test load for the DDR bus.
V
V
Notes:
1. Data input threshold measurement point.
2. Data output measurement point.
OUT
TH
Symbol
Output
Table 20. DDR and DDR2 SDRAM Measurement Conditions
Figure 5. Timing Diagram for t
ADDR/CMD
ADDR/CMD
MCK[n]
MCK[n]
MV
0.5 × GV
REF
Figure 6. DDR AC Test Load
DDR
Z
± 0.31 V
0
= 50 Ω
DD
t
AOSKEW(max)
t
AOSKEW(min)
CMD
CMD
t
MCK
MV
AOSKEW
0.5 × GV
REF
DDR2
± 0.25 V
NOOP
R
NOOP
Measurement
DD
L
= 50 Ω
GV
Unit
V
V
DD
/2
Freescale Semiconductor
Notes
1
2