IBUFDSE3

UltraScale Architecture SelectIO Resources User Guide (UG571)

Document ID
UG571
Release Date
2022-08-31
Revision
1.14 English

The differential input buffer (IBUFDSE3) primitive is only supported in HP I/O banks (This Figure). This UltraScale architecture specific primitive has functions similar to the IBUFDS_IBUFDISABLE along with controls for offset calibration and input buffer disable (IBUFDISABLE). The offset calibration feature is accessed using the OSC_EN[1:0] and OSC[3:0] ports. The VREF scan feature is not supported with this primitive.

Figure 1-28:      IBUFDSE3 Primitive—Differential Input Buffer with Offset Calibration (HP I/O Banks Only)

X-Ref Target - Figure 1-28

X16087-ibufdse3-primitive-diff-input-buffer-w-offset-calib-hp-io-banks-only.jpg