Synchronization Register Chain Length logic option

Allows you to specify the retiming behavior for a sequence of synchronization or metastability registers. All registers in the sequence have the same clock and have no fan-out in between, such that the first register is fed by a pin or by logic in another clock domain. These registers are not moved during gate-level retiming. The length of the sequence is specified by a variable.

This option is available for all Intel devices supported by the Intel® Quartus® Prime software.

Scripting Information

Keyword: synchronization_register_chain_length

Settings: 2 | <register value>


Note: For more information about metastability, see the "Managing Metastability with the Intel® Quartus® Prime Software" chapter in the Intel® Quartus® Prime Handbook, volume 1.