User Manual

GAMMA instabus

Release: February 2012

KNX EIB TP-UART 2-IC

Siemens AG pages 42 Technical Manual

Infrastructure and Cities Sector,

Building Technologies

Control Products and Systems © Siemens AG 2012 page 19

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3 Digitalpart

TP-UART 2 is at the digital interface compatible with TP-UART. This means that the same drivers and

stacks can be used without modification.

In addition TP-UART 2 supports some additional useful services. These services reduce the necessary

performance in the microcontroller.

3.1 Relationship to ISO-Reference-Model

Host -

Contoller

UART - Digital - Part

UART - Analog - Part

Link -

Layer

Physical - Layer

Media - Access

Control

Logical Link -

Control

Network - Layer

Transport - Layer

Applikation - Layer

ISO - Layer

EIB - UART - Layer

TP-

UART-

Fig. 1: ISO/ OSI Layer

Tasks of the Logical Link - Control in:

TP-UART: Checksum, Parity, Immediate Acknowledge, Repetition, Timing

Host - Controller : Checksum, Parity, Addressing, Length