When configuring the SD 0 or SD 1 controller there are multiple options for the SD Slot Type.
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X-Ref Target - Figure 4-6 
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• Slot Type
° SD 2.0 : Set controller to operate in SD 2.0 mode.
° SD 3.0 : Set controller to operate in SD 3.0 mode.
° SD 3.0 AutoDir : Set controller to operate in SD 3.0 mode with support for nxp-level shifters.
° eMMC : Set controller to operate in eMMC mode.
• Data Transfer Mode : Set the data mode for the SD controller.
• OTAP Delay : Select the output tap delay values for various SD modes. For more information, see DLL Clock Mode for SD section in Zynq UltraScale All Programmable MPSoC Technical Reference Manual (UG1085) [Ref 1] .
• ITAP Delay : Select the input tap delay values for various SD modes. For more information, see DLL Clock Mode for SD section in Zynq UltraScale All Programmable MPSoC Technical Reference Manual (UG1085) [Ref 1] .
• CD : Enable the SD Card Detect Signal (only available in SD mode).
• Power : Enable GRP Power.
• WP : Enable write protect signals (only available in SD mode).