S3C2440 Просмотр технического описания (PDF) - Samsung

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Компоненты Описание

производитель

S3C2440

32-BIT CMOS MICROCONTROLLER

Samsung 

Table of Contents (Continued)

Chapter 17 Real Time Clock

Overview .............................................................................................................................................17-1

Features .....................................................................................................................................17-1

Real Time Clock Operation...........................................................................................................17-2

Leap Year Generator....................................................................................................................17-2

Read/Write Registers...................................................................................................................17-2

Backup Battery Operation ............................................................................................................17-2

Alarm Function............................................................................................................................17-3

TICK Time Interrupt ......................................................................................................................17-3

32.768kHz X-Tal Connection Example ..........................................................................................17-3

Real Time Clock Special Registers .......................................................................................................17-4

Real Time Clock Control (RTCCON) Register .................................................................................17-4

TICK Time Count (TICNT) Register ................................................................................................17-4

RTC Alarm Control (RTCALM) Register..........................................................................................17-5

ALARM Second Data (ALMSEC) Register .....................................................................................17-6

ALARM Min Data (ALMMIN) Register............................................................................................17-6

ALARM Hour Data (ALMHOUR) Register.......................................................................................17-6

ALARM Date Data (ALMDATE) Register........................................................................................17-7

ALARM Mon Data (ALMMON) Register .........................................................................................17-7

ALARM Year Data (ALMYEAR) Register .......................................................................................17-7

BCD Second (BCDSEC) Register .................................................................................................17-8

BCD Minute (BCDMIN) Register....................................................................................................17-8

BCD Hour (BCDHOUR) Register ...................................................................................................17-8

BCD Date (BCDDATE) Register....................................................................................................17-9

BCD Day (BCDDAY) Register.......................................................................................................17-9

BCD Month (BCDMON) Register...................................................................................................17-9

BCD Year (BCDYEAR) Register ...................................................................................................17-10

Chapter 18 Watchdog Timer

Overview .............................................................................................................................................18-1

Features .....................................................................................................................................18-1

Watchdog Timer Operation...........................................................................................................18-2

Wtdat & Wtcnt ............................................................................................................................18-2

Consideration of Debugging Environment .......................................................................................18-2

Watchdog Timer Special Registers .......................................................................................................18-3

Watchdog Timer Control (WTCON) Register...................................................................................18-3

Watchdog Timer Data (WTDAT) Register.......................................................................................18-4

Watchdog Timer Count (WTCNT) Register .....................................................................................18-4

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S3C2440A MICROCONTROLLER

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