Intel® Core™ Ultra Processor

Datasheet, Volume 1 of 2
Supporting Intel® Core™ Ultra Processor for U/H/U-Type4-series Platforms, formerly known as Meteor Lake

ID Date Version Classification
792044 05/09/2025 Public
Document Table of Contents

Data Swapping

By default, the processor supports on-board data swapping in two manners (for all segments and DRAM technologies):

  • Bit swapping is allowed within each Byte for all DDR technologies.
  • LPDDR5/x x16 sub-channels can be swizzle within their x64 MC.
  • LPDDR5/x: Byte swapping is allowed within each x16 Channel.
  • DDR5 x32 sub-channels can be swizzle within their x64 MC.
  • DDR5: Byte swapping is allowed within each x32 Channel.
  • ECC bits swap is allowed within ECC byte/nibble: DDR5 ECC[3..0].

Note:All DRAM devices sharing ZQ resistor must be connected to the same MC channel.