HT56RB27 datasheet(4/153 Pages) HOLTEK

4 / 153 page

Pulse Width Modulator .....................................................................47

PWM Overview ....................................................................................................47

8+4 PWM Mode Modulation .................................................................................48

PWM Output Control ............................................................................................48

PWM Register Pairs

- PWMnH/PWMnL (n=0~3) .................................................49

PWM Programming Example ...............................................................................49

Analog to Digital Converter..............................................................50

A/D Overview .......................................................................................................50

A/D Converter Data Registers

- ADRL, ADRH.....................................................50

A/D Converter Control Registers

- ADCR, ADPCR, ACSR ..................................51

A/D Operation.......................................................................................................52

A/D Input Pins ......................................................................................................53

Initialising the A/D Converter ................................................................................53

Programming Considerations ...............................................................................55

A/D Programming Example ..................................................................................55

A/D Transfer Function...........................................................................................57

Serial Interface Function

- SIM ........................................................58

SPI Interface.........................................................................................................58

SPI Registers .......................................................................................................63

SPI Control Register

- SIMnCTL2 ........................................................................64

SPI Communication..............................................................................................67

2C Interface .........................................................................................................67

2C Control Register

- SIMAR...............................................................................69

2C Bus Communication........................................................................................70

Peripheral Clock Output ...................................................................74

Peripheral Clock Operation...................................................................................74

Buzzer.................................................................................................75

PA0/PA1 Pin Function Control ..............................................................................75

Interrupts............................................................................................77

Interrupt Registers ................................................................................................78

Interrupt Operation ...............................................................................................81

Interrupt Priority.....................................................................................................81

External Interrupt ..................................................................................................82

External Peripheral Interrupt .................................................................................83

Timer/Event Counter Interrupt ..............................................................................83

A/D Interrupt .........................................................................................................84

Smart Card Interrupt.............................................................................................84

Smart Card Insertion/Removal Interrupt ...............................................................84

SIM (SPI/I

2C Interface) Interrupts .........................................................................84

Multi-function Interrupt ..........................................................................................85

Real Time Clock Interrupt .....................................................................................85

Time Base Interrupt ..............................................................................................86

Programming Considerations ...............................................................................87

Rev. 1.20

April 26, 2013

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HT56RB27 データシート(PDF) 4 Page - Holtek Semiconductor Inc

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