UltraScale Architecture SelectIO Resources User Guide (UG571)

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1.14 English

This Figure shows the differential input/output buffer primitive with complementary outputs (O and OB). A logic-High on the T pin disables the output buffers. When the output buffers are 3-stated (T = High), the input buffer and any on-die receiver termination (uncalibrated or DCI) are ON. When the output buffer is not 3-stated (T = Low), any on-die receiver termination (uncalibrated or DCI) is disabled. TM and TS must be connected to the same input from the interconnect logic for this primitive to have the expected behavior that is specific to the UltraScale architecture.

Figure 1-36:      Differential Input/Output Buffer Primitive with Complementary Outputs for the Input Buffer (IOBUFDS_DIFF_OUT)

X-Ref Target - Figure 1-36