async_fifo::<S>

Asynchronous FIFO

Asynchronous FIFO based on gray-code pointer. Generic parameter S is a module name of synchrinozer.

Generic Parameters

S synchronizer

Parameters

WIDTH u32 Data width
TYPE type Data type
STAGES u32 Stages of synchronizer
DEPTH u32 Depth of FIFO
THRESHOLD u32 Threshold for almost full signal
USE_OUT_DATA_RESET bit Whether output data is reset
INITIAL_OUT_DATA TYPE Reset value of output data
MERGE_RESET bit Whether both reset are merged
RESET_SYNC_STAGES u32 Stages of reset synchronizer

Clock Domains

'd
's

Ports

is_clk input 's clock src clock
is_rst input 's reset src reset
os_almost_full output 's logic FIFO is almost full
os_full output 's logic FIFO is full
is_push input 's logic push to FIFO
is_data input 's TYPE push data
id_clk input 'd clock dst clock
id_rst input 'd reset dst reset
od_empty output 'd logic FIFO is empty
id_pop input 'd logic pop from FIFO
od_data output 'd TYPE pop data