Single-Ended 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. Single-Ended Output Buffer Primitives

Table 1. OBUF, OBUFT, OBUF_ODDR, OBUFT_ODDR Attributes
Attribute	Values	Description
SLEW	SLOW, FAST, MEDIUM	Specifies the slew rate of the output.
DRIVE	2, 4, 6, 8	Specifies the drive strength of the output.
IOSTANDARD	See Table 1	Assigns an I/O standard to the element.

Table 2. OBUF and OBUFT Ports
Port	I/O	Description
O	Output	Output of OBUF to be connected directly to top-level output port.
I	Input	Input of OBUF. Connect to the logic driving the output port.
T	Input	Tristate enable input. (OBUFT only)
IO_0	Input	Input of OBUF when C is driven low (logic 0) (OBUF_ODDR and OBUFT_ODDR only)
IO_1	Input	Input of OBUF when C is driven high (logic 1) (OBUF_ODDR and OBUFT_ODDR only)
C	Input	Input select pin (OBUF_ODDR and OBUFT_ODDR only)