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SDMA may refer to:

  • "Space-Division Multiple Access", a channel access method used in communication (for instance in MIMO technology)
  • "Soft Direct Memory Access", a type of DMA specific to Xilinx's Multi-Port Memory Controller (MPMC)
  • "System Direct Memory Access", a linux kernel module and userspace library for accessing DMA using some processors made by Texas Instruments
  • "Symmetrical Dimethylarginine", an isomer of Asymmetric Dimethylarginine (ADMA)