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MC68HC908AB32MFU 数据表(PDF) 9 Page - Motorola, Inc

部件名 MC68HC908AB32MFU
功能描述  HCMOS Microcontroller Unit
Download  392 Pages
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制造商  MOTOROLA [Motorola, Inc]
网页  http://www.freescale.com
标志 MOTOROLA - Motorola, Inc

MC68HC908AB32MFU 数据表(HTML) 9 Page - Motorola, Inc

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Table of Contents
MC68HC908AB32 Rev. 1.0
Technical Data
MOTOROLA
Table of Contents
9
8.6
Exception Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
8.6.1
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
8.6.1.1
Hardware Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
8.6.1.2
SWI Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
8.6.2
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
8.6.3
Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
8.6.4
Status Flag Protection in Break Mode . . . . . . . . . . . . . . . . 123
8.7
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
8.7.1
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
8.7.2
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
8.8
SIM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
8.8.1
SIM Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . 127
8.8.2
SIM Reset Status Register . . . . . . . . . . . . . . . . . . . . . . . . . 128
8.8.3
SIM Break Flag Control Register . . . . . . . . . . . . . . . . . . . . 129
Section 9. Clock Generator Module (CGM)
9.1
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
9.2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
9.3
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
9.4
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
9.4.1
Crystal Oscillator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
9.4.2
Phase-Locked Loop (PLL) Circuit . . . . . . . . . . . . . . . . . . . 135
9.4.2.1
PLL Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
9.4.2.2
Acquisition and Tracking Modes . . . . . . . . . . . . . . . . . . 136
9.4.2.3
Manual and Automatic PLL Bandwidth Modes . . . . . . . 136
9.4.2.4
Programming the PLL . . . . . . . . . . . . . . . . . . . . . . . . . . 138
9.4.2.5
Special Programming Exceptions . . . . . . . . . . . . . . . . . 139
9.4.3
Base Clock Selector Circuit . . . . . . . . . . . . . . . . . . . . . . . . 140
9.4.4
CGM External Connections . . . . . . . . . . . . . . . . . . . . . . . . 140
9.5
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
9.5.1
Crystal Amplifier Input Pin (OSC1). . . . . . . . . . . . . . . . . . . 142
9.5.2
Crystal Amplifier Output Pin (OSC2) . . . . . . . . . . . . . . . . . 142
9.5.3
External Filter Capacitor Pin (CGMXFC) . . . . . . . . . . . . . . 142
9.5.4
PLL Analog Power Pin (VDDA) . . . . . . . . . . . . . . . . . . . . . .142
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


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