Abstract: Maxim advanced universal asynchronous receivers/transmitters (UARTs) ease the burden of physical layer management in an asynchronous communications network. The devices include a single UART with two package options (MAX3107/MAX3108), a dual UART (MAX3109), and a quad UART (MAX14830).

　　These UARTs share a common register set, which eases the task of adapting firmware from one UART to another. This article discusses each UART's unique set of features. It also examines the care that must be taken when adapting software and hardware from one device to another.

　　Introduction

　　Maxim's advanced universal asynchronous receivers/transmitters (UARTs) help the host processor manage the physical layer in an asynchronous communications network. These advanced devices include a single UART with two package options (MAX3107/MAX3108), a dual UART (MAX3109), and a quad UART (MAX14830).