Enable D4 Fine Delay (DQS Delay Chain) logic option

A logic option that turns on fine delay resolution for the D4 delay cell. This is an advanced option; use this option only after compiling your project, checking I/O timing, and determining that timing is unsatisfactory. This option is ignored if it is applied to anything other than an input or bidirectional pin.

Scripting Information

Keyword: d4_fine_delay

Settings: <integer>


For more information, refer to the data sheet for the relevant device family.