MC68HC908LK24 MOTOROLA [Motorola, Inc], MC68HC908LK24 Datasheet - Page 10
MC68HC908LK24
Manufacturer Part Number
MC68HC908LK24
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908LK24.pdf
(465 pages)
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Table of Contents
Data Sheet
10
7.6
7.6.1
7.6.2
7.7
8.1
8.2
8.3
8.4
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
8.4.6
8.4.7
8.4.8
8.4.9
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
8.6.4
8.6.5
Freescale Semiconductor, Inc.
For More Information On This Product,
Low Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Oscillator During Break Mode. . . . . . . . . . . . . . . . . . . . . . . . . 107
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
CGM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Section 8. Clock Generator Module (CGM)
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
Oscillator Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Phase-Locked Loop Circuit (PLL) . . . . . . . . . . . . . . . . . . . 114
PLL Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Acquisition and Tracking Modes . . . . . . . . . . . . . . . . . . . . 116
Manual and Automatic PLL Bandwidth Modes. . . . . . . . . . 116
Programming the PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Special Programming Exceptions . . . . . . . . . . . . . . . . . . . 122
Base Clock Selector Circuit . . . . . . . . . . . . . . . . . . . . . . . . 122
CGM External Connections . . . . . . . . . . . . . . . . . . . . . . . . 123
External Filter Capacitor Pin (CGMXFC) . . . . . . . . . . . . . . 124
PLL Analog Power Pin (V
PLL Analog Ground Pin (V
Oscillator Output Frequency Signal (CGMXCLK) . . . . . . . 124
CGM Reference Clock (CGMRCLK) . . . . . . . . . . . . . . . . . 124
CGM VCO Clock Output (CGMVCLK) . . . . . . . . . . . . . . . . 125
CGM Base Clock Output (CGMOUT). . . . . . . . . . . . . . . . . 125
CGM CPU Interrupt (CGMINT) . . . . . . . . . . . . . . . . . . . . . 125
PLL Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
PLL Bandwidth Control Register . . . . . . . . . . . . . . . . . . . .128
PLL Multiplier Select Registers . . . . . . . . . . . . . . . . . . . . . 130
PLL VCO Range Select Register . . . . . . . . . . . . . . . . . . . .131
PLL Reference Divider Select Register . . . . . . . . . . . . . . . 132
Go to: www.freescale.com
Table of Contents
DDA
SSA
) . . . . . . . . . . . . . . . . . . . . . . 124
) . . . . . . . . . . . . . . . . . . . . . 124
MC68HC908LJ24/LK24 — Rev. 2
MOTOROLA
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