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ST62E80B Datenblatt(PDF) 2 Page - STMicroelectronics

Teilenummer ST62E80B
Bauteilbeschribung  8-BIT OTP/EPROM MCU WITH LCD DRIVER, EEPROM AND A/D CONVERTER
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
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Table of Contents
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ST62T80B/E80B . ..... . . . . . ... . . .. . . .. . . . . . ..... .. . . . 1
1 GENERAL DESCRIPTION . . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . . 5
1.1 INTRODUCTION . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. . 5
1.2 PIN DESCRIPTIONS . . . . . . .... . ... .. . . . . .... .... .. . . . . . . . . . . . . . ... .. . .... . 7
1.3 MEMORY MAP . . . . . . . . . . .... . ... ... . . . .... .... .. . . . . . . . . . . . . . ... .. . .... . 8
1.3.1 Introduction . . . .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . ... .. .. . . . . . . . 8
1.3.2 Program Space . . . . . . . . . . . . . . . . . . . . .... ... . ... . . .. .. .. .. . . . . . . ... .. . 8
1.3.3 Data Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... .... ... . ... .. . . ... .. . . . 10
1.3.4 Stack Space . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 10
1.3.5 Data Window Register (DWR) . . . . ... .. . . . . ... . ... . . .. .. .. .. .. . . . . ... .. 11
1.3.6 Data RAM/EEPROM and LCD RAM Bank Register (DRBR) . . . . . . . . . . . . . . . . . . 12
1.3.7 EEPROM Description . . . . . . . . . . . . . . . . . . . . .... . . . .... .... .. . . . . . . . . . . 13
1.4 PROGRAMMING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.4.1 Option Byte . . . .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . . . ... .. . . . . . . 15
1.4.2 Program Memory . . . .... .. . .... .. . .... . ... .. .. .. .... . . . ... . . . . . . . . . . 15
1.4.3 EEPROM Data Memory . . . . . . . . . . . . . . . . . . . .... . . . .... . ... .. . . ... .. . . . 15
1.4.4 EPROM Erasing .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . . . ... .. . . . . . . 15
2 CENTRAL PROCESSING UNIT . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . 16
2.1 INTRODUCTION . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 16
2.2 CPU REGISTERS . . . .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . ... .. .. . . . . . . 16
3 CLOCKS, RESET, INTERRUPTS AND POWER SAVING MODES . . .... ... . . . . . . . . . . . . 18
3.1 CLOCK SYSTEM . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 18
3.1.1 Main Oscillator . . . . . . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... ... . . . . 18
3.1.2 32 KHz STAND-BY OSCILLATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 RESETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2.1 RESET Input . . .... . . . . .. . . . . . . . . .... . ... ... . . . . . . . . . . ... .. .. . . . . . . 20
3.2.2 Power-on Reset .... .... .. . . . . . . . . .... . ... .. .. .. . . . . . . . ... . . . . . . . . . . 20
3.2.3 Watchdog Reset . . . . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... ... . . . . 21
3.2.4 Application Notes . . . .... .. . . . . . . . . .... . ... .. .. .. . .... ... . ... . . .. .. .. 21
3.2.5 MCU Initialization Sequence . . . . . . . . . . . ... . . . . . . . . . .... ... . . . ... .. .. .. 21
3.3 DIGITAL WATCHDOG . . . . . . . . . . . . . . . . . . .... . ... .. . . . . .... . . . ... . . . . . . . . . . 23
3.3.1 Digital Watchdog Register (DWDR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3.2 Application Notes . . . .... .. . . . . . . . . .... . ... .. .. .. . .... ... . ... . . .. .. .. 25
3.4 INTERRUPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.4.1 Interrupt request . .... . . .. .. .. .. . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. 27
3.4.2 Interrupt Procedure . . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... ... . . . . 28
3.4.3 Interrupt Option Register (IOR) . . . . . . . . . . . . . . . . . . . . . . . . . .... . ... .. . . ... 29
3.4.4 Interrupt sources . . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. .. . . .. . . ... .. 29
3.5 POWER SAVING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . ... 31
3.5.1 WAIT Mode .... ... . ... .. . . ... .. . .... . ... .. . . . . .... . . . . .. . . . . . . . . . . 31
3.5.2 STOP Mode . . . . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . .... 31
3.5.3 Exit from WAIT and STOP Modes . . . . . . . ... . . . . . . . . . .... ... . ... . . .. .. .. 32


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