TEF668X User Manual | TEF668x 用户手册

(Lithio FMSI and Lithio FMSI DR) offer the added performance of extended FM stereo

reception and the variants TEF6688 and TEF6689 (Lithio DR and Lithio FMSI DR) offer

connectivity and support for digital radio reception in the AM and FM bands.

This user manual describes the TEF668X series control interface or API (Application

Programming Interface). The document describes the available write and read

commands with parameter and data definitions.

This document version contains limited background information regarding the feature

functionality and the offered control options so some general knowledge of car radio

functions is required.

This user manual describes the functionality and control of the TEF668X device version

Full control of the device functions and features is available using this single interface.

bus specification.

The control interface is described in this document on an abstract ‘application’ level as

well as on I²C protocol level.

The TEF668X interface definition is compatible with the TEF665X (Atomic-2) and

TEF701X (Sabre) series of devices, although differing in available commands reflecting

the available functionality. The interface is compatible with the TEA685X (Tiger-2) series

as well.

that can be regarded sub-devices within the device.

The TEF668X consists of four modules:

Different modules can be controlled independently even when the addressed module

itself is inactive at the time of control. This means modules can be prepared and

option selections.

The control is organized in such a way that future devices may support writing of a single

parameter up to writing of all parameters available for a given command.

Fig 1 represents the TEF668X control interface as seen from the host controller.