This application note describes the behavior of the RDY (Ready) pin in several modes of operation: Encoded, Bypass, and BIST (Built-In Self-Test). The RDY pin indicates the status of the HOTLinkä Receiver control logic and output pins. Its function and timing are dependent on the state of the MODE, BISTEN (Built-In Self-Test Enable), and RF (Reframe) pins. The following sections describe RDY behavior in detail.