PORTS - 2022.2 English - UG911

Applied To

Ports

Constraint Values

• NONE

• UNTUNED_SPLIT_40

• UNTUNED_SPLIT_50

• UNTUNED_SPLIT_60

UCF Example

NET a[0] IN_TERM = UNTUNED_SPLIT_50;

XDC Example

set_property IN_TERM UNTUNED_SPLIT_50 [get_ports [list\ clk]]

Applied To

Ports

Constraint Values

• NONE

• UNTUNED_25

• UNTUNED_50

• UNTUNED_75

UCF Example

net q[0] OUT_TERM = UNTUNED_50;

XDC Example

The Vivado Design Suite does not support this constraint in XDC.

Applied To

Port nets

Constraint Values

NONE

UCF Example

net b[0] IOBDELAY = NONE;

XDC Example

set_property IOBDELAY NONE [get_nets b[0]]

Note: You cannot set IOBDELAY on ports. However, you can set IOBDELAY on cells such as input buffers.

Applied To

Port nets

Constraint Values

BOTH

UCF Example

net b[0] IOBDELAY = BOTH;

XDC Example

set_property IOBDELAY BOTH [get_nets b[0]]

Note: You cannot set IOBDELAY on ports. However, you can set IOBDELAY on cells such as input buffers.

Applied To

Port nets

Constraint Values

IBUF

UCF Example

net b[0] IOBDELAY = IBUF;

XDC Example

set_property IOBDELAY IBUF [get_nets b[0]]

Note: You cannot set IOBDELAY on ports. However, you can set IOBDELAY on cells such as input buffers.

Applied To

Port nets

Constraint Values

IFD

UCF Example

net b[0] IOBDELAY = IFD;

XDC Example

set_property IOBDELAY IFD [get_nets b[0]]

Note: You cannot set IOBDELAY on ports. However, you can set IOBDELAY on cells such as input buffers

Applied To

Port nets

Constraint Values

• TRUE

• FALSE

• YES

• NO

UCF Example

NET n1 KEEPER = TRUE;

XDC Example

set_property KEEPER true [get_ports n1]

Applied To

Port nets

Constraint Values

• TRUE

• FALSE

• YES

• NO

UCF Example

NET n1 PULLDOWN = TRUE;

XDC Example

set_property PULLDOWN true [get_ports n1]

Applied To

Port nets

Constraint Values

• TRUE

• FALSE

• YES

• NO

UCF Example

NET n1 PULLUP = TRUE;

XDC Example

set_property PULLUP true [get_ports n1]

Applied To

Ports

Constraint Values

• NORMAL

• HIGH

• DONTCARE

UCF Example

NET d[0] VCCAUX_IO = HIGH;

XDC Example

set_property VCCAUX_IO HIGH [get_ports d[0]]