Parameters

Parameter Type Required Comments
IO_STANDARD String No

Specifies the I/O standard for the tri-stated output pin, accepting positive integer values including 0. Values are legal Quartus Prime Settings File (.qsf) DefinitionI/O standards Definition values.

CURRENT_STRENGTH String No

Specifies the current strength value. Values are legal Quartus® Prime Settings File current strength new values.

SLEW_RATE Integer No

Specifies the low-to-high or high-to-low transitions on output pins. This parameter is available for Cyclone® III and Stratix® III devices only.

SLOW_SLEW_RATE String No

Specifies whether to use slow slew rate for the tri-stated output pin. Values are "ON" or "OFF". This parameter is available for supported device (MAX® II) families.

LOCATION String No Specifies a legal pin location for the current device.
ENABLE_BUS_HOLD String No

Specifies whether or not to enable bus-hold circuitry. Legal values are "ON" and "OFF".

WEAK_PULL_UP_RESISTOR String No

Specifies whether or not to enable the weak pull-up resistor. Legal values are "ON" and "OFF".

TERMINATION String No Specifies any legal on-chip termination (OCT) value for the current device.
INPUT_TERMINATION String No

Specifies any legal OCT value for the current device. This parameter cannot be used with TERMINATION. This parameter is available for supported device (Cyclone® III and Stratix® III) families.

OUTPUT_TERMINATION String No

Specifies any legal OCT value for the current device. This parameter cannot be used with the parameter TERMINATION. This parameter is available for supported device (Cyclone® III and Stratix® III) families.