MC68HC908QY2 MOTOROLA [Motorola, Inc], MC68HC908QY2 Datasheet - Page 19

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MC68HC908QY2

Manufacturer Part Number
MC68HC908QY2
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet

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MOTOROLA
Data Sheet — MC68HC908QY4
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
Figure
1-1
1-2
2-1
2-2
4-1
4-2
4-3
4-4
5-1
5-2
6-1
6-2
6-3
6-4
6-5
6-6
7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
MCU Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Control, Status, and Data Registers . . . . . . . . . . . . . . . . . . . . . 36
FLASH Control Register (FLCR) . . . . . . . . . . . . . . . . . . . . . . . 47
FLASH Programming Flowchart . . . . . . . . . . . . . . . . . . . . . . . .52
FLASH Block Protect Register (FLBPR). . . . . . . . . . . . . . . . . . 53
FLASH Block Protect Start Address . . . . . . . . . . . . . . . . . . . . . 53
Configuration Register 2 (CONFIG2) . . . . . . . . . . . . . . . . . . . . 56
Configuration Register 1 (CONFIG1) . . . . . . . . . . . . . . . . . . . . 57
CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Accumulator (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Index Register (H:X) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Stack Pointer (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Program Counter (PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Condition Code Register (CCR) . . . . . . . . . . . . . . . . . . . . . . . .63
SIM Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
SIM I/O Register Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
SIM Clock Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
External Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Internal Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Sources of Internal Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
POR Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Interrupt Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Interrupt Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
List of Figures
Title
List of Figures
Page
19

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