1.1.15. LPDDR2 Data, Data Strobe, and DM Signals
Differential DQS operation enables improved system timing due to reduced crosstalk and less simultaneous switching noise on the strobe output drivers. The DQ pins are also bidirectional. DQS is edge-aligned with the read data and centered with the write data.
DM is the input mask for the write data signal. Input data is masked when DM is sampled high coincident with that input data during a write access.
Did you find the information on this page useful?