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MC68HC908AS60MFU bảng dữ liệu(PDF) 10 Page - Motorola, Inc |
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MC68HC908AS60MFU bảng dữ liệu(HTML) 10 Page - Motorola, Inc |
10 / 454 page Technical Data MC68HC908AS60 — Rev. 1.0 10 Table of Contents MOTOROLA Table of Contents 9.8 SIM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151 9.8.1 SIM Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . 151 9.8.2 SIM Reset Status Register . . . . . . . . . . . . . . . . . . . . . . . 153 9.8.3 SIM Break Flag Control Register . . . . . . . . . . . . . . . . . . . . 154 Section 10. Clock Generator Module (CGM) 10.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 10.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 10.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 10.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 10.4.1 Crystal Oscillator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 10.4.2 Phase-Locked Loop Circuit (PLL) . . . . . . . . . . . . . . . . . . . 159 10.4.2.1 Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 10.4.2.2 Acquisition and Tracking Modes . . . . . . . . . . . . . . . . . .161 10.4.2.3 Manual and Automatic PLL Bandwidth Modes . . . . . . . 161 10.4.2.4 Programming the PLL . . . . . . . . . . . . . . . . . . . . . . . . . . 163 10.4.2.5 Special Programming Exceptions . . . . . . . . . . . . . . . . . 165 10.4.3 Base Clock Selector Circuit . . . . . . . . . . . . . . . . . . . . . . . . 165 10.4.4 CGM External Connections . . . . . . . . . . . . . . . . . . . . . . . . 166 10.5 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 10.5.1 Crystal Amplifier Input Pin (OSC1) . . . . . . . . . . . . . . . . . . .167 10.5.2 Crystal Amplifier Output Pin (OSC2) . . . . . . . . . . . . . . . . . 167 10.5.3 External Filter Capacitor Pin (CGMXFC) . . . . . . . . . . . . . . 167 10.5.4 Analog Power Pin (VDDA) . . . . . . . . . . . . . . . . . . . . . . . . . .168 10.5.5 Oscillator Enable Signal (SIMOSCEN). . . . . . . . . . . . . . . . 168 10.5.6 Crystal Output Frequency Signal (CGMXCLK) . . . . . . . . .168 10.5.7 CGM Base Clock Output (CGMOUT). . . . . . . . . . . . . . . . . 168 10.5.8 CGM CPU Interrupt (CGMINT) . . . . . . . . . . . . . . . . . . . . . 168 10.6 CGM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 10.6.1 PLL Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 10.6.2 PLL Bandwidth Control Register . . . . . . . . . . . . . . . . . . . . 171 10.6.3 PLL Programming Register . . . . . . . . . . . . . . . . . . . . . . . . 173 10.7 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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