MC68HC912B32MFU8 MOTOROLA [Motorola, Inc], MC68HC912B32MFU8 Datasheet - Page 3

• Manufacturer Part Number: MC68HC912B32MFU8
• Description: 16-Bit Microcontroller
• Manufacturer: MOTOROLA [Motorola, Inc]

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MC68HC912B32
MC68HC912B32TS/D
Section
1.1
1.2
1.3
2.1
2.2
2.3
2.4
2.5
3.1
3.2
3.3
3.4
3.5
5.1
5.2
5.3
5.4
6.1
6.2
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
8.1
8.2
9.1
9.2
9.3
9.4
9.5
9.6
10.1
10.2
10.3
10.4
10.5
10.6
Introduction
Features ......................................................................................................................................1
Ordering Information ...................................................................................................................2
MC68HC912B32 Block Diagram .................................................................................................5
Central Processing Unit
Programming Model ....................................................................................................................6
Data Types ..................................................................................................................................7
Addressing Modes .......................................................................................................................7
Indexed Addressing Modes .........................................................................................................8
Opcodes and Operands ..............................................................................................................8
Pinout and Signal Descriptions
MC68HC912B32 Pin Assignments .............................................................................................9
Power Supply Pins ....................................................................................................................10
Signal Descriptions ....................................................................................................................11
Port Signals ............................................................................................................................... 15
Port Pull-Up, Pull-Down and Reduced Drive ............................................................................. 19
Register Block
Operating Modes and Resource Mapping
Operating Modes .......................................................................................................................25
Background Debug Mode ..........................................................................................................26
Internal Resource Mapping .......................................................................................................28
Memory Maps ............................................................................................................................ 31
Bus Control and Input/Output
Detecting Access Type from External Signals ..........................................................................32
Registers ................................................................................................................................... 32
Flash EEPROM
Overview ................................................................................................................................... 37
Flash EEPROM Control Block ...................................................................................................37
Flash EEPROM Array ...............................................................................................................37
Flash EEPROM Registers .........................................................................................................37
Operation ...................................................................................................................................40
Programming the Flash EEPROM ............................................................................................42
Erasing the Flash EEPROM ......................................................................................................44
Program/Erase Protection Interlocks .........................................................................................46
Stop or Wait Mode .....................................................................................................................46
Test Mode .................................................................................................................................46
EEPROM
EEPROM Programmer’s Model ................................................................................................47
EEPROM Control Registers ......................................................................................................48
Resets and Interrupts
Exception Priority ......................................................................................................................52
Maskable Interrupts ...................................................................................................................52
Interrupt Control and Priority Registers .....................................................................................53
Resets ....................................................................................................................................... 54
Effects of Reset .........................................................................................................................54
Register Stacking ......................................................................................................................55
Clock Functions
Clock Sources ...........................................................................................................................57
Computer Operating Properly (COP) ........................................................................................57
Real-Time Interrupt ...................................................................................................................57
Clock Monitor ............................................................................................................................57
Clock Function Registers ..........................................................................................................58
Clock Divider Chains .................................................................................................................60
TABLE OF CONTENTS
MOTOROLA
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