This application note considers the interface between a Cypress CY7B923 (HOTLink™) Transmitter and generic FIFOs. Minimal interface logic is required to achieve a high-performance interface. A block diagram of the HOTLink Transmitter and generic FIFO interface is shown in Figure 1. The FIFO operates as an asynchronous data rate buffer between the HOTLink Transmitter and the data source. The data is continually read from the FIFO into the transmitter when the Transmit signal is asserted. Reading continues until the FIFO is empty.