Datasheet
Table of Contents
MC68HC912DT128A — Rev 4.0 Technical Data
MOTOROLA Table of Contents 11
12.7 System Clock Frequency Formulae . . . . . . . . . . . . . . . . . . . .181
12.8 Clock Divider Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .182
12.9 Computer Operating Properly (COP) . . . . . . . . . . . . . . . . . . .185
12.10 Real-Time Interrupt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186
12.11 Clock Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186
12.12 Clock Function Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . .187
Section 13. Oscillator
13.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193
13.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193
13.3 MC68HC912DT128A Oscillator Specification . . . . . . . . . . . .194
13.4 MC68HC912Dx128C Colpitts Oscillator Specification . . . . . .197
13.5 MC68HC912Dx128P Pierce Oscillator Specification . . . . . . .212
Section 14. Pulse Width Modulator
14.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225
14.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225
14.3 PWM Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . .229
14.4 PWM Boundary Cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .240
Section 15. Enhanced Capture Timer
15.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .241
15.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .241
15.3 Enhanced Capture Timer Modes of Operation. . . . . . . . . . . .247
15.4 Timer Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . .251
15.5 Timer and Modulus Counter Operation in Different Modes . .275
Section 16. Multiple Serial Interface
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