A logic option that sets the drive strength of a pin. Specific numerical strength settings are appropriate only for pins with 1.5-V, 1.8-V, or 2.5-V, LVCMOS, or LVTTL I/O standards.
The following drive strengths are appropriate:
|
The default strength setting for Stratix™ and Stratix™ GX side I/Os is 12 mA. |
| I/O Standard | Default Drive Strength |
|---|---|
| 1.5-V |
APEX™ II: 2 mA Cyclone™: 8 mA Mercury™: Maximum Strength Stratix and Stratix GX: 8 mA |
| 1.8-V |
APEX II: 8 mA Cyclone: 12 mA Mercury: Maximum Strength Stratix and Stratix GX: 12 mA |
| 2.5-V |
APEX II: 16 mA Cyclone: 16 mA Mercury: 16 mA Stratix and Stratix GX: 16 mA |
| LVCMOS |
APEX II: 24 mA Cyclone: 12 mA Mercury: 24 mA Stratix and Stratix GX: 24 mA |
| LVTTL |
APEX II: 24 mA Cyclone: 12 mA Mercury: 24 mA Stratix and Stratix GX: 24 mA |
|
For more information on device specific drive strengths and defaults, refer to individual device family data sheets, which are available from the Literature section of the Altera® web site. |
This option is ignored if it is applied to anything other than an output or bidirectional pin. This option is available for APEX II, Cyclone, Mercury, Stratix, and Stratix GX devices.
|
- PLDWorld - |
|
|
| Created by chm2web html help conversion utility. |