PMS152 datasheet(4/91 Pages) PADAUK

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PMS152

8bit OTP Type SuLED IO Controller

Page 4 of 91

PDK-DS-PMS152-EN_V105 –Jun. 9, 2020

5.4.4.

External Crystal Oscillator .........................................................................................31

5.4.5.

System Clock and LVR level .....................................................................................33

5.4.6.

System Clock Switching ............................................................................................34

5.5.

Comparator ...........................................................................................................................35

5.5.1

Internal reference voltage (Vinternal R)...........................................................................36

5.5.2

Using the comparator ................................................................................................38

5.5.3

Using the comparator and band-gap 1.20V ...............................................................39

5.6

16-bit Timer (Timer16) ..........................................................................................................40

5.7

8-bit Timer (Timer2) with PWM generation............................................................................42

5.7.1

Using the Timer2 to generate periodical waveform ....................................................43

5.7.2

Using the Timer2 to generate 8-bit PWM waveform...................................................45

5.7.3

Using the Timer2 to generate 6-bit PWM waveform...................................................46

5.8

11-bit PWM Generators ........................................................................................................47

5.8.1

PWM Waveform ........................................................................................................47

5.8.2

Hardware Diagram ....................................................................................................48

5.8.3

Equations for 11-bit PWM Generator .........................................................................49

5.8.4

PWM Waveforms with Complementary Dead Zones .................................................49

5.9

WatchDog Timer ...................................................................................................................52

5.10

. Interrupt ..............................................................................................................................53

5.11

. Power-Save and Power-Down ............................................................................................55

5.11.1 Power-Save mode (“stopexe”) ...................................................................................55

5.11.2 Power-Down mode (“stopsys”) ..................................................................................56

5.11.3 Wake-up....................................................................................................................56

5.12

IO Pins ..................................................................................................................................58

5.13

Reset and LVR......................................................................................................................59

5.13.1 Reset.........................................................................................................................59

5.13.2 LVR reset ..................................................................................................................59

6. IO Registers ........................................................................................................................ 60

6.1.

ACC Status Flag Register (flag), IO address = 0x00 .............................................................60

6.2.

Stack Pointer Register (sp), IO address = 0x02 ....................................................................60

6.3.

Clock Mode Register (clkmd), IO address = 0x03 .................................................................60

6.4.

Interrupt Enable Register (inten), IO address = 0x04 ............................................................61

6.5.

Interrupt Request Register (intrq), IO address = 0x05 ...........................................................61

6.6.

Timer16 mode Register (t16m), IO address = 0x06...............................................................62

6.7.

MISC Register (misc), IO address = 0x08 .............................................................................62

6.8.

External Oscillator setting Register (eoscr), IO address = 0x0a.............................................63

6.9.

Interrupt Edge Select Register (integs), IO address = 0x0c...................................................63

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