DM385, DM388
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SPRS821D –MARCH 2013–REVISED DECEMBER 2013
DVDD_DDR[0]
Cac
Rcp
Rcp
A2
A2
AT
AT
0.1 µF
=
Figure 8-74. CK Routing for One DDR3 Device
Rtt
A2
AT
Vtt
=
Figure 8-75. ADDR_CTRL Routing for One DDR3 Device
8.13.3.15 Data Topologies and Routing Definition
No matter the number of DDR3 devices used, the data line topology is always point to point, so its
definition is simple.
8.13.3.15.1 DQS and DQ/DM Topologies, Any Number of Allowed DDR3 Devices
DQS lines are point-to-point differential, and DQ/DM lines are point-to-point singled ended. Figure 8-76
and Figure 8-77 show these topologies.
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