STV3550 datasheet(4/144 Pages) STMICROELECTRONICS

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STV3550

6.4.1

External Hard Reset .............................................................................................................................81

6.4.2

Internal Reset Generated by the Watchdog .........................................................................................82

6.4.3

Internal Soft Reset ................................................................................................................................82

6.5

Booting the STV3550 .........................................................................................................82

6.5.1

Typical Boot Sequence .........................................................................................................................82

6.5.2

Starting The Main Application Program ................................................................................................83

6.6

Standby Mode .................................................................................................................... 83

6.7

Interrupt Management ........................................................................................................84

6.8

Clock Generator ................................................................................................................. 85

Chapter 7

TV Chassis Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

7.1

PWM and Counter Module ................................................................................................. 86

7.1.1

External Interface ................................................................................................................................86

7.1.2

PWM Functions ....................................................................................................................................86

7.1.3

Counter Functions ................................................................................................................................87

7.2

Infrared Receiver Preprocessor ......................................................................................... 88

7.3

Watchdog Timer (WDT) ..................................................................................................... 89

7.3.1

Clearing the Counter ............................................................................................................................89

7.3.2

Generation of Internal Watchdog Reset Signal ....................................................................................90

7.4

Real Time Clock (RTC) ...................................................................................................... 91

7.4.1

Real Time Clock (RTC) .........................................................................................................................91

7.5

Basic Timer ........................................................................................................................ 92

7.5.1

Functional Description ..........................................................................................................................92

7.5.2

Interrupt Selection ................................................................................................................................93

7.6

Analog to Digital Converter ................................................................................................ 94

7.6.1

Introduction ...........................................................................................................................................94

7.6.2

Main Features .......................................................................................................................................94

7.6.3

General Description ..............................................................................................................................94

7.6.4

Analog Watchdog .................................................................................................................................95

7.6.5

Low Power Modes ................................................................................................................................96

7.7

Inter Integrated Circuit Bus (I²C) ........................................................................................ 97

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