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Motorola MC68HC908AB32 User Manual

Motorola MC68HC908AB32
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Table of Contents
Technical Data MC68HC908AB32
—
Rev. 1.0
10
Table of Contents MOTOROLA
9.5.5 Oscillator Enable Signal (SIMOSCEN). . . . . . . . . . . . . . . .142
9.5.6 Crystal Output Frequency Signal (CGMXCLK) . . . . . . . . .143
9.5.7 CGM Base Clock Output (CGMOUT). . . . . . . . . . . . . . . . .143
9.5.8 CGM CPU Interrupt (CGMINT) . . . . . . . . . . . . . . . . . . . . .143
9.6 CGM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143
9.6.1 PLL Control Register (PCTL) . . . . . . . . . . . . . . . . . . . . . . .144
9.6.2 PLL Bandwidth Control Register (PBWC) . . . . . . . . . . . . .146
9.6.3 PLL Programming Register (PPG). . . . . . . . . . . . . . . . . . .148
9.7 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150
9.8 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150
9.8.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150
9.8.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151
9.9 CGM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . .151
9.10 Acquisition/Lock Time Specifications . . . . . . . . . . . . . . . . . . .151
9.10.1 Acquisition/Lock Time Definitions. . . . . . . . . . . . . . . . . . . .152
9.10.2 Parametric Influences On Reaction Time. . . . . . . . . . . . . .153
9.10.3 Choosing a Filter Capacitor . . . . . . . . . . . . . . . . . . . . . . . .154
9.10.4 Reaction Time Calculation . . . . . . . . . . . . . . . . . . . . . . . . .155
Section 10. Monitor ROM (MON)
10.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
10.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
10.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158
10.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158
10.4.1 Entering Monitor Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . .160
10.4.2 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161
10.4.3 Echoing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162
10.4.4 Break Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162
10.4.5 Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163
10.4.6 Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166
10.5 Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167
10.6 Extended Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168

Table of Contents

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Motorola MC68HC908AB32 Specifications

General IconGeneral
BrandMotorola
ModelMC68HC908AB32
CategoryController
LanguageEnglish

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