GENERAL DESCRIPTION
The TP - UART - IC (Twisted Pair - Universal Asynchronous Receive Transmit - IC) is a transceiver which supports the connection of microcontrollers of sensors, actuators, or other applications to the EIB (European - Installation - Bus).
This module supports every transmit- and receive - function and also the high ohmic decoupling of energy from bus line. It generates further a stabilized 3.3V or 5V supply to use by a host controller. Up to 256 subscribers can be connected to one bus line.
An UART interface is realized for communication with a host controller. The coupling can be realized directly or via optical couplers.
The TP - UART - IC consists of two main parts: the digital part (UART - Interface) and the analog part (analog circuit part).

FEATUREs
• Signaling for standard UART (LSB-First, Idle is 1)
• Baud rate 9600 or 19200 baud for the communication: TP - UART <--> Host - Controller
• Direct coupling to host controller (TxD, RxD), or via optical couplers (optional)
• 2 - wire protocol with software handshake
• Buffering of send frames
• No critical timing during transmission
• 64 Byte telegram buffer
• Operating temperature range: -25°C to 85°C
• Supervision of EIB bus voltage