Clock configuration setup in TRAVEO™ T2G
family CYT4D series MCUs
About this document
Scope and purpose
AN226071 describes how to set up the various clock sources in TRAVEO™ T2G family CYT4D series MCUs and
provides examples including configuring PLL/FLL and calibrating the ILO.
Associated part family
TRAVEO™ T2G family CYT4D series automotive microcontrollers
Intended audience
This document is intended for users who use the clock configuration setup in TRAVEO™ T2G family CYT4D series
MCUs.
Table of contents
About this document ......................................................................................................................... 1
Table of contents .............................................................................................................................. 1
1 Introduction ............................................................................................................................ 3
2 Clock system for TRAVEO™ T2G family MCUs ............................................................................... 4
2.1 Overview of the clock system ................................................................................................................. 4
2.2 Clock resources ....................................................................................................................................... 4
2.3 Clock system functions ........................................................................................................................... 4
2.4 Basic clock system settings ................................................................................................................... 11
3 Configuration of the clock resources .........................................................................................12
3.1 Setting the ECO ..................................................................................................................................... 12
3.1.1 Use case ............................................................................................................................................ 13
3.1.2 Configuration ................................................................................................................................... 13
3.1.3 Sample code for initial ECO configuration ...................................................................................... 14
3.2 Setting WCO ........................................................................................................................................... 20
3.2.1 Operation overview .......................................................................................................................... 20
3.2.2 Configuration ................................................................................................................................... 20
3.2.3 Sample code for the initial configuration of WCO settings ............................................................ 21
3.3 Configuring IMO ..................................................................................................................................... 22
3.4 Configuring ILO0/ILO1 ........................................................................................................................... 22
3.5 Setting the LPECO ................................................................................................................................. 23
3.5.1 Use case ............................................................................................................................................ 23
3.5.2 Sample code for the initial configuration of LPECO settings ......................................................... 24
4 Configuration of the FLL and PLL ..............................................................................................26
4.1 Setting FLL ............................................................................................................................................. 26
4.1.1 Operation overview .......................................................................................................................... 26