| IO |
Inout |
Inout port connection. Connect directly to
top-level port in the design. |
| O |
Output |
Output path of the buffer. |
| I |
Input |
Input port connection. Connect directly to
top-level port in the design. |
| T |
Input |
Tristate enable input signifying whether the
buffer acts as an input or output. |
| IBUFDISABLE |
Input |
The IBUFDISABLE pin can disable the input buffer and force the O
output to the internal logic to a logic High when the IBUFDISABLE
signal is asserted High. (IOBUF_INTERMDISABLE only) |
| INTERMDISABLE (IOBUF_INTERMDISABLE) |
Input |
IBUFDISABLE is not supported in HD IOB. (IOBUF_INTERMDISABLE
only) |
