| ALT_OUTBUF Primitive | |
Parameter |
Type |
Required |
Comments |
|---|---|---|---|
IO_STANDARD |
String |
No |
Specifies the I/O standard for the tri-stated output pin. Values are legal Quartus Prime Standard Edition Settings File (.qsf) DefinitionI/O standards Definition values. |
CURRENT_STRENGTH |
String |
No |
Specifies the current strength value. Values are legal Quartus® Prime Standard Edition 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 CycloneIII and StratixIII 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 not available for CycloneIII and StratixIII devices. |
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. This parameter cannot be used with IN_TERMINATION or OUT_TERMINATION. |