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. |