1Gb: x4, x8, x16 DDR3 SDRAM
Synchronous ODT Mode
ODT Off During READs
Because the device cannot terminate and drive at the same time, RTT must be disabled
at least one-half clock cycle before the READ preamble by driving the ODT ball LOW (if
either RTT,nom or RTT(WR) is enabled). RTT may not be enabled until the end of the post-
amble, as shown in the following example.
Note: ODT may be disabled earlier and enabled later than shown in Figure 117
(page 205).
PDF: 09005aef826aa906
1Gb_DDR3_SDRAM.pdf - Rev. L 03/13 EN
204
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