| IO_STANDARD | String | No | Specifies the I/O standard for the tri-stated
                                output pin. Values are legal Intel Quartus Prime Settings File (.qsf) DefinitionI/O standards Definition
                                values. | 
                        
                            | 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. |