mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 103
mc68hc708mp16
Manufacturer Part Number
mc68hc708mp16
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC708MP16.pdf
(398 pages)
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Technical Data — MC68HC708MP16
8.1 Contents
MC68HC708MP16
Freescale Semiconductor
—
Rev. 3.1
Section 8. Clock Generator Module (CGM)
8.2
8.3
8.4
8.4.1
8.4.2
8.4.2.1
8.4.2.2
8.4.2.3
8.4.2.4
8.4.2.5
8.4.3
8.4.4
8.5
8.5.1
8.5.2
8.5.3
8.5.4
8.5.5
8.5.6
8.5.7
8.5.8
8.6
8.6.1
8.6.2
8.6.3
8.7
8.8
8.9
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
CGM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
CGM During Break Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Crystal Oscillator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Phase-Locked Loop Circuit (PLL) . . . . . . . . . . . . . . . . . . . 107
Base Clock Selector Circuit. . . . . . . . . . . . . . . . . . . . . . . . 112
CGM External Connections. . . . . . . . . . . . . . . . . . . . . . . . 113
Crystal Amplifier Input Pin (OSC1) . . . . . . . . . . . . . . . . . . 114
Crystal Amplifier Output Pin (OSC2) . . . . . . . . . . . . . . . . . 114
External Filter Capacitor Pin (CGMXFC). . . . . . . . . . . . . . 114
PLL Analog Power Pin (V
Oscillator Enable Signal (SIMOSCEN) . . . . . . . . . . . . . . . 115
Crystal Output Frequency Signal (CGMXCLK) . . . . . . . . . 115
CGM Base Clock Output (CGMOUT) . . . . . . . . . . . . . . . . 115
CGM CPU Interrupt (CGMINT) . . . . . . . . . . . . . . . . . . . . . 116
PLL Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
PLL Bandwidth Control Register . . . . . . . . . . . . . . . . . . . 119
PLL Programming Register . . . . . . . . . . . . . . . . . . . . . . . . 121
Clock Generator Module (CGM)
PLL Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Acquisition and Tracking Modes . . . . . . . . . . . . . . . . . . 109
Manual and Automatic PLL Bandwidth Modes . . . . . . . 109
Programming the PLL . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Special Programming Exceptions . . . . . . . . . . . . . . . . . 112
DDA
) . . . . . . . . . . . . . . . . . . . . . 115
Technical Data
103
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