The receiver offset control (OFFSET_CNTRL) feature (HP I/O banks only) allows offset cancellation in receivers for certain I/O standards to overcome offset variations due to process.
The valid values for the OFFSET_CNTRL attribute are:
- CNTRL_NONE (Default)
- FABRIC
Note: OFFSET_CNTRL = MEM_CTRL is not a valid option.
The OFFSET_CNTRL attribute uses the following syntax in the XDC file:
set_property OFFSET_CNTRL value [get_ports port_name
]
To invoke the offset cancellation feature in an HP I/O bank, OFFSET_CNTRL must be set to FABRIC. The controls for offset cancellation are available using the IBUFE3, IBUFDSE3, IOBUFE3, or IOBUFDSE3 primitives.