TXZ Family

Advanced Programmable Motor Control Circuit

2018-05-08

2 / 58 Rev. 2.0

Contents

Preface .............................................................................................................................................................. 5

Related document ..................................................................................................................................................... 5

Conventions .............................................................................................................................................................. 6

Terms and Abbreviations .......................................................................................................................................... 8

1. Outlines ...................................................................................................................................................... 9

2. Configuration ............................................................................................................................................ 11

3. Function and Operation ............................................................................................................................ 13

3.1. Clock Supply .................................................................................................................................................... 13

3.2. Pulse Width Modulation Circuit ........................................................................................................................ 13

3.2.1. PWM Carrier Generation ............................................................................................................................................ 13

3.2.2. 3 Phase PWM Wave Generation ................................................................................................................................ 16

3.3. Conduction Control Circuit ............................................................................................................................... 19

3.4. Protection Control Circuit ................................................................................................................................. 21

3.4.1. EMG Protection Control Circuit ................................................................................................................................... 22

3.4.2. OVV Protection Control Circuit ................................................................................................................................... 24

3.4.3. Protection control when using the debug tool ............................................................................................................. 25

3.5. Dead time Control Circuit ................................................................................................................................. 26

3.6. Synchronous Trigger Generation Circuit ......................................................................................................... 28

3.7. Buffer Operation ............................................................................................................................................... 30

3.8. Decimation of Execution Buffer Update Timing and Synchronous Trigger Output Timing ............................. 32

3.9. Debug Output Function .................................................................................................................................... 33

4. Registers .................................................................................................................................................. 34

4.1. List of Registers ............................................................................................................................................... 34

4.2. Details of Registers .......................................................................................................................................... 35

4.2.1. [PMDxMDEN] (PMD enable register) ......................................................................................................................... 35

4.2.2. [PMDxPORTMD] (Port output mode register)............................................................................................................. 35

4.2.3. [PMDxMDCR] (PMD control register) ......................................................................................................................... 36

4.2.4. [PMDxCARSTA] (PWM carrier status register) ........................................................................................................... 38

4.2.5. [PMDxBCARI] (Basic carrier register) ......................................................................................................................... 38

4.2.6. [PMDxRATE] (PWM frequency register) .................................................................................................................... 38

4.2.7. PWM duty comparison register ................................................................................................................................... 39

4.2.7.1. [PMDxCMPU] (PWM duty comparison U register) .......................................................................................................... 39

4.2.7.2. [PMDxCMPV] (PWM duty comparison V register) ........................................................................................................... 39

4.2.7.3. [PMDxCMPW] (PWM duty comparison W register) ......................................................................................................... 40

4.2.8. PWM carrier phase difference register ....................................................................................................................... 40

4.2.8.1. [PMDxVPWMPH] (V-phase phase difference register) .................................................................................................... 40

4.2.8.2. [PMDxWPWMPH] (W-phase phase difference register) .................................................................................................. 40

4.2.9. [PMDxMDPOT] (PMD output setting register) ............................................................................................................ 41

4.2.10. [PMDxMDOUT] (PMD conduction control register) .................................................................................................. 42

4.2.11. [PMDxEMGCR] (EMG control register) .................................................................................................................... 43

4.2.12. [PMDxEMGSTA] (EMG status register) .................................................................................................................... 44