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MC68HC912BL16 Datasheet(PDF) 3 Page - NXP Semiconductors |
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MC68HC912BL16 Datasheet(HTML) 3 Page - NXP Semiconductors |
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3 / 128 page  Section Page TABLE OF CONTENTS MC68HC912BL16TS/D 3 1 Introduction 1 1.1 Features ......................................................................................................................................1 1.2 Ordering Information ...................................................................................................................2 1.3 MC68HC912BL16 Block Diagram ...............................................................................................5 2 Central Processing Unit 6 2.1 Programming Model ....................................................................................................................6 2.2 Data Types ..................................................................................................................................7 2.3 Addressing Modes .......................................................................................................................7 2.4 Indexed Addressing Modes .........................................................................................................8 2.5 Opcodes and Operands ..............................................................................................................8 3 Pinout and Signal Descriptions 9 3.1 MC68HC912BL16 Pin Assignments ...........................................................................................9 3.2 Power Supply Pins ....................................................................................................................10 3.3 Signal Descriptions ....................................................................................................................11 3.4 Port Signals ...............................................................................................................................15 3.5 Port Pull-Up, Pull-Down and Reduced Drive .............................................................................19 4 Register Block 20 5 Operating Modes and Resource Mapping 25 5.1 Operating Modes .......................................................................................................................25 5.2 Background Debug Mode ..........................................................................................................26 5.3 Internal Resource Mapping .......................................................................................................28 5.4 Memory Maps ............................................................................................................................31 6 Bus Control and Input/Output 32 6.1 Detecting Access Type from External Signals ..........................................................................32 6.2 Registers ...................................................................................................................................32 7 Flash EEPROM 37 7.1 Overview ...................................................................................................................................37 7.2 Flash EEPROM Control Block ...................................................................................................37 7.3 Flash EEPROM Array ...............................................................................................................37 7.4 Flash EEPROM Registers .........................................................................................................37 7.5 Operation ...................................................................................................................................40 7.6 Programming the Flash EEPROM ............................................................................................42 7.7 Erasing the Flash EEPROM ......................................................................................................44 7.8 Program/Erase Protection Interlocks .........................................................................................46 7.9 Stop or Wait Mode .....................................................................................................................46 7.10 Test Mode .................................................................................................................................46 7.11 FLASH Program/Erase Voltage Signal Conditioning ................................................................46 8 EEPROM 49 8.1 EEPROM Programmer’s Model ................................................................................................49 8.2 EEPROM Control Registers ......................................................................................................50 9 Resets and Interrupts 54 9.1 Exception Priority ......................................................................................................................54 9.2 Maskable Interrupts ...................................................................................................................54 9.3 Interrupt Control and Priority Registers .....................................................................................55 9.4 Resets .......................................................................................................................................56 9.5 Effects of Reset .........................................................................................................................56 9.6 Register Stacking ......................................................................................................................57 10 Clock Functions 59 10.1 Clock Sources ...........................................................................................................................59 10.2 Computer Operating Properly (COP) ........................................................................................59 10.3 Real-Time Interrupt ...................................................................................................................59 10.4 Clock Monitor ............................................................................................................................59 10.5 Clock Function Registers ..........................................................................................................60 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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