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ST72411R Datasheet(PDF) 2 Page - STMicroelectronics

Part # ST72411R
Description  8-BIT MCU WITH SMARTCARD INTERFACE, LCD DRIVER, 8-BIT TIMER, SAFE RESET AND SUPPLY MONITORING
PDF  71 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72411R Datasheet(HTML) 2 Page - STMicroelectronics

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Table of Contents
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1 GENERAL DESCRIPTION . . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . . 4
1.1 INTRODUCTION . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. . 4
1.2 PIN DESCRIPTION . . .... . ... .. . . ... .. . .... . ... .. .. .. .... . . . ... . . . . . . . . ... 5
1.3 REGISTER & MEMORY MAP . . . .... . . ... .. .... ... . . . . . . . . . . . . . . . . . . . . ... .. . 8
1.4 FLASH PROGRAM MEMORY . . . . . . . . . . . . .... . ... .. .. .. .... . . . ... . . . . . . . . . . 10
1.4.1 Introduction . . . .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . ... .. .. . . . . . . 10
1.4.2 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.4.3 Structural organisation . . . . . . . . . . . . . . .... .... .. . . . . . . . . . . . . . ... .. . .... 10
1.4.4 In-Situ Programming (ISP) modes . . . . . . . . . . . . . . . . . . .... .... .. . . . . . . . . . . 10
1.5 PROGRAM MEMORY READ-OUT PROTECTION . . . . . . . . . . . . . . . . . . . .... . . ... .. 11
2 CENTRAL PROCESSING UNIT . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . 12
2.1 INTRODUCTION . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 12
2.2 MAIN FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... .... ... . . . . . . . . ... .. . . . 12
2.3 CPU REGISTERS . . . .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . ... .. .. . . . . . . 12
3 SUPPLY, RESET AND CLOCK MANAGEMENT . . . . .... ... . . . . . . . . . . . . . . . . . . . . ... .. 15
3.1 LOW VOLTAGE DETECTOR AND SUPERVISOR (LVDS) . . . . . . . . . . . . . . . . . . . . . . . 15
3.1.1 Low Voltage Detector . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 15
3.1.2 Open Power Supply Detection (OPSD) . .... . . . ... . . . . . . . . . . . . . ... ... . . . . 15
3.1.3 Power Supply Supervisor (PSS) . . . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . 15
3.2 RESET SEQUENCE MANAGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3 MAIN CLOCK CONTROLLER SYSTEM (MCC) . . . .... .. . . . . . . . . . . . . . ... .. . .... 21
4 INTERRUPTS . . .... .. . . . . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . 22
4.1 NON MASKABLE SOFTWARE INTERRUPT .... . ... .. .. .. .... . . . ... . . . . . . . . . . 22
4.2 EXTERNAL INTERRUPTS . . . . . . . . . . . . . . . . . . . . . .... .... ... . . . . . . . . ... .. . . . 22
4.3 PERIPHERAL INTERRUPTS .... . ... .. .. ... ... . . . . . . . . ... .. . . ... . ... . . . . ... 22
4.4 POWER SAVING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . ... 25
4.4.1 Introduction . . . .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . ... .. .. . . . . . . 25
4.4.2 Slow Mode . . . . . . . . . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... ... . . . . 25
4.4.3 Wait Mode . . . . . . . . . . . . . . . . . . . ... . . . . ... .. ... .. .. ... .. . ... .. . . ... . . 25
4.4.4 Halt Mode . . . . . .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . ... .. .. . . . . . . 26
5 ON-CHIP PERIPHERALS . . . . . . . . . . . .... . . ... .. .... ... . . . . . . . . . . . . . . . . . . . . ... .. 27
5.1 I/O PORTS . . . . . . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 27
5.1.1 Introduction . . . .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . ... .. .. . . . . . . 27
5.1.2 Functional Description . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 27
5.1.3 I/O Port Implementation . . . . . . . . . . . . . . . . . . . .... . . . .... .... .. . .... .. . . . 29
5.1.4 Register Description . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 30
5.2 MISCELLANEOUS REGISTER . . . . . . . . . . . . . . ... . . . . . . . . . .... ... . . . . . . . . . . . . 32
5.2.1 I/O Port Interrupt Sensitivity Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.2.2 Slow mode and VDD Supply Monitoring .... .... .. . . . . . . . . . . . . . ... .. . .... 32
5.3 8-BIT TIMER (TIM8) . . . . . . . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... ... . . . . 34
5.3.1 Introduction . . . .... . . . . .. . . . . . . . . . . . . . ... ... . . . . . . . . . . ... .. .. . . . . . . 34
5.3.2 Main Features . . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . .... 34
5.3.3 Counter/Prescaler Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . ... 35
5.3.4 Functional description . . . . . . . . . . . . . . . . . . . . .... .... ... . ... .. . . ... .. . . . 36
5.3.5 Register Description . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. 38



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