Only the most elementary logic circuits use a single clock. Most data-movement applications, including disk-drive controllers, CDROM/DVD controllers, modems, network interfaces, and network processors ...

Synchronous interfaces involve a single clock domain and are relatively easy to design. However, at times, it is advantageous and necessary to have an asynchronous interface between peripherals for ...

FIFO (First In First Out) is a buffer that stores data in a way that data stored first comes out of the buffer first. Asynchronous FIFO is most widely used in the System-on-Chip (SoC) designs for data ...

This application note explains the internal architecture of the asynchronous FIFO made by Cypress (CY7C421) and its functionality – the writing and reading process. It also discusses FIFO ...