XC912BC32CFU8 Motorola Semiconductor Products, XC912BC32CFU8 Datasheet - Page 9
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XC912BC32CFU8
Manufacturer Part Number
XC912BC32CFU8
Description
M68HC12B Family Data Sheet
Manufacturer
Motorola Semiconductor Products
Datasheet
1.XC912BC32CFU8.pdf
(362 pages)
- Current page: 9 of 362
- Download datasheet (5Mb)
M68HC12B Family — Rev. 8.0
MOTOROLA
5.1
5.2
5.2.1
5.2.1.1
5.2.1.2
5.2.1.3
5.2.2
5.2.2.1
5.2.2.2
5.2.2.3
5.2.2.4
5.2.3
5.3
5.4
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.5
6.1
6.2
6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
6.3.8
6.3.9
7.1
7.2
7.3
7.3.1
7.3.2
7.3.3
7.3.4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Internal Resource Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Mode and Resource Mapping Registers . . . . . . . . . . . . . . . . . . . . . . . . 80
Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Detecting Access Type from External Signals . . . . . . . . . . . . . . . . . . . . 87
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
EEPROM Programmer’s Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
EEPROM Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Section 5. Operating Modes and Resource Mapping
Normal Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Special Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Background Debug Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Mode Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Register Initialization Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
RAM Initialization Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
EEPROM Initialization Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Miscellaneous Mapping Control Register . . . . . . . . . . . . . . . . . . . . . 84
Port A Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Port A Data Direction Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Port B Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Port B Data Direction Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Port E Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Port E Data Direction Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Port E Assignment Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Pullup Control Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Reduced Drive of I/O Lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
EEPROM Module Configuration Register. . . . . . . . . . . . . . . . . . . . . 99
EEPROM Block Protect Register . . . . . . . . . . . . . . . . . . . . . . . . . . 100
EEPROM Test Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
EEPROM Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Normal Expanded Wide Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Normal Expanded Narrow Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Normal Single-Chip Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Special Expanded Wide Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Special Expanded Narrow Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 79
Special Single-Chip Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Special Peripheral Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Section 6. Bus Control and Input/Output (I/O)
Table of Contents
Section 7. EEPROM
Table of Contents
Data Sheet
9
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