Table Of Contents - Toshiba TXZ+ Series Reference Manual

Preface ................................................................................................................................................................. 7
Related document ..................................................................................................................................................... 7
Conventions .............................................................................................................................................................. 8
Terms and Abbreviations ........................................................................................................................................ 10
1. Clock Control and Operation Mode ............................................................................................................ 11
Outlines ............................................................................................................................................................ 11
Clock control .................................................................................................................................................... 11
Clock type ................................................................................................................................................................... 11
The initial value by a reset action ............................................................................................................................... 12
Clock System diagram ................................................................................................................................................ 13
Warming up function ................................................................................................................................................... 14
The warming up timer for a high speed oscillation ......................................................................................................... 14
The warming up timer for a low speed oscillation .......................................................................................................... 15
The directions for a warming up timer ........................................................................................................................... 15
Clock multiplying circuit (PLL) for fsys ........................................................................................................................ 16
PLL setup after reset release ........................................................................................................................................ 16
The formula and the example of a setting of a PLL multiplication value ........................................................................ 16
Change of the PLL multiplication value under operation ................................................................................................ 17
PLL operation start / stop / switching procedure ............................................................................................................ 18
System clock .............................................................................................................................................................. 19
The setting method of a system clock ........................................................................................................................... 20
Low speed clock ......................................................................................................................................................... 22
ELOSC Setting (No Operation of External Low Speed Oscillator → Operation) ............................................................ 22
ELCLKIN Setting (No Operation of External Low Speed Oscillator → Operation) ......................................................... 22
Clock supply setting function ...................................................................................................................................... 23
Prescaler clock ........................................................................................................................................................... 23
Operation mode ............................................................................................................................................... 24
Details of an Operation mode ..................................................................................................................................... 24
The feature in each mode ............................................................................................................................................. 24
Transition to and Return from Low Power Consumption mode ...................................................................................... 25
Selection of a Low Power Consumption mode .............................................................................................................. 25
The peripheral function state in a Low Power Consumption mode ................................................................................ 26
Switch to and return from a Low Power Consumption mode ...................................................................................... 28
IDLE mode transition flow ............................................................................................................................................. 28
STOP1 mode transition flow .......................................................................................................................................... 29
STOP2 mode transition flow .......................................................................................................................................... 30
Return from a Low Power Consumption mode ........................................................................................................... 31
The release source of a Low Power Consumption mode .............................................................................................. 31
Warming up at the release of Low Power Consumption mode ...................................................................................... 32
Restart operation from STOP2 mode ............................................................................................................................ 33
Clock operation by mode transition ............................................................................................................................ 34
NORMAL → IDLE → NORMAL Operation mode transition ........................................................................................... 34
NORMAL → STOP1 → NORMAL Operation mode transition ....................................................................................... 34
Clock Control and Operation Mode
Contents
2 / 88
TXZ+ Family
TMPM4G Group(1)
2021-06-30
Rev. 1.1