Table Of Contents - Toshiba TXZ+ Series Reference Manual

Preface ................................................................................................................................................................. 6
Related documents ................................................................................................................................................... 6
Conventions .............................................................................................................................................................. 7
Terms and Abbreviations .......................................................................................................................................... 9
1. Clock control and operation mode .............................................................................................................. 10
1.1. Outlines ............................................................................................................................................................ 10
1.2. Clock control .................................................................................................................................................... 11
1.2.1. Clock type ................................................................................................................................................................... 11
1.2.2. The initial value by a reset action ............................................................................................................................... 11
1.2.3. Clock System diagram ................................................................................................................................................ 12
1.2.4. Warming-up function .................................................................................................................................................. 13
1.2.4.1. The warming-up timer for a high speed oscillation ........................................................................................................ 13
1.2.4.2. The directions for a warming-up timer ........................................................................................................................... 14
1.2.5. Clock multiplying circuit (PLL) for fsys ........................................................................................................................ 14
1.2.5.1. A PLL setup after reset release ..................................................................................................................................... 14
1.2.5.2. The formula and the example of a setting of a PLL multiplication value ........................................................................ 15
1.2.5.3. Change of the PLL multiplication value under operation ................................................................................................ 16
1.2.5.4. PLL operation start / stop / switching procedure ............................................................................................................ 17
(1) fc setup (PLL stop >>> PLL start) .................................................................................................................. 17
(2) fc setup (conduct PLL >>> PLL stop) ............................................................................................................. 17
1.2.6. System clock .............................................................................................................................................................. 18
1.2.6.1. The setting method of a system clock ........................................................................................................................... 19
(1) fosc setup (Internal oscillation >>> External oscillation) ................................................................................ 19
(2) fosc setup (Internal oscillation >>> External clock input) ............................................................................... 20
(3) fosc setup (External oscillation/External clock input >>> Internal oscillation) ................................................ 20
1.2.7. Clock supply setting function ...................................................................................................................................... 21
1.2.8. Prescaler clock ........................................................................................................................................................... 21
1.3. Operation mode ............................................................................................................................................... 22
1.3.1. Details of an Operation mode ..................................................................................................................................... 22
1.3.1.1. The feature in each mode ............................................................................................................................................. 22
1.3.1.2. Transition to and Return from Low Power Consumption mode ...................................................................................... 23
1.3.1.3. Selection of a Low Power Consumption mode .............................................................................................................. 23
1.3.1.4. The peripheral function state in a Low Power Consumption mode ................................................................................ 24
1.3.2. Mode State Transition ................................................................................................................................................ 25
1.3.2.1. IDLE mode transition flow ............................................................................................................................................. 25
1.3.2.2. STOP1 mode transition flow .......................................................................................................................................... 26
1.3.3. Return from a Low Power Consumption mode ........................................................................................................... 27
1.3.3.1. The release source of a Low Power Consumption mode .............................................................................................. 27
1.3.3.2. Warming-up at the release of Low Power Consumption mode ...................................................................................... 28
1.3.4. Clock operation by mode transition ............................................................................................................................ 29
1.3.4.1. NORMAL >>> IDLE >>> NORMAL Operation mode transition ...................................................................................... 29
1.3.4.2. NORMAL >>> STOP1 >>> NORMAL Operation mode transition .................................................................................. 29
1.4. Explanation of Register .................................................................................................................................... 30
1.4.1. Register list ................................................................................................................................................................. 30
Clock Control and Operation Mode
Contents
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TXZ+ Family
TMPM4K Group(2)
2021-06-15
Rev. 1.1