mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 10

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mc68hc912dg128

Manufacturer Part Number
mc68hc912dg128
Description
M68hc12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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Table of Contents
Technical Data
10
9.8
9.9
9.10
10.1
10.2
10.3
10.4
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
11.10 Real-Time Interrupt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
11.11 Clock Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
11.12 Clock Function Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
12.1
12.2
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For More Information On This Product,
Effects of Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Register Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Important User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Key Wake-up and Port Registers . . . . . . . . . . . . . . . . . . . . . .148
Key Wake-Up Input Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Clock Sources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Phase-Locked Loop (PLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Acquisition and Tracking Modes. . . . . . . . . . . . . . . . . . . . . . . 159
Limp-Home and Fast STOP Recovery modes . . . . . . . . . . . . 161
System Clock Frequency formulas . . . . . . . . . . . . . . . . . . . . . 179
Clock Divider Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Computer Operating Properly (COP) . . . . . . . . . . . . . . . . . . .184
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Section 10. I/O Ports with Key Wake-up
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Section 12. Pulse Width Modulator
Table of Contents
Section 11. Clock Functions
MC68HC912DG128 — Rev 3.0
MOTOROLA

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