Differential Output Buffer Primitives - AM010

Versal Adaptive SoC SelectIO Resources Architecture Manual (AM010)
Document ID
AM010
Release Date
2025-05-22
Revision
1.7 English
Figure 1. Differential Output Buffer Primitives
Table 1. OBUFDS, OBUFDS_COMP, OBUFTDS, OBUFTDS_COMP, OBUFTDS_ODDR, OBUFTDS_COMP_ODDR, OBUFDS_ODDR, and OBUFDS_COMP_ODDR Attributes
Attribute Values Description
SLEW SLOW, FAST, MEDIUM Specifies the slew rate of the output driver (OBUFDS, OBUFTDS only)
IOSTANDARD See Table 1 Assigns an I/O standard to the element.
Table 2. OBUFDS, OBUFDS_COMP, OBUFTDS, OBUFTDS_COMP Ports, OBUFTDS_ODDR, OBUFTDS_COMP_ODDR, OBUFDS_ODDR, and OBUFDS_COMP_ODDR
Port I/O Description
O Output Output connected directly to P-side top-level output port
OB Output Output connected directly to N-side top-level output port
I Input Buffer input
T Input Tristate enable input (OBUFTDS only)
IO_0 Input Input of OBUF when C is driven low (logic 0) (OBUFTDS_ODDR, OBUFTDS_COMP_ODDR, OBUFDS_ODDR, and OBUFDS_COMP_ODDR only)
IO_1 Input Input of OBUF when C is driven high (logic 1) (OBUFTDS_ODDR, OBUFTDS_COMP_ODDR, OBUFDS_ODDR, and OBUFDS_COMP_ODDR only)
C Input Input Select Pin (OBUFTDS_ODDR, OBUFTDS_COMP_ODDR, OBUFDS_ODDR, and OBUFDS_COMP_ODDR only)