2.1.3.2 Async Assert, Sync De-assert
Async Assert, Sync De-assert has asynchronous assertion and synchronus de-assertion of reset to CLK_50MHZ.
When you select asynchronous reset, the following warning message is shown:
Warning: When selecting the Asynchronous
Assertion, Synchronous De - assertion reset type, it is recommended to use an SET
mitigated approach when connecting an async reset signal to the PLL_RST_N input of this
core. An external reset can enter the device using a CLKBUF macro on a GB# pin, or an
RGRESET macro can be manually instantiated and connected to a triplicated internal logic
cone. For more information, refer to App Note AC463.