mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 111

• Manufacturer Part Number: mc68hc908bd48
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

8.1 Contents
8.2 Introduction
MC68HC908BD48
Freescale Semiconductor
Data Sheet — MC68HC908BD48
—
Rev. 2.1
8.2
8.3
8.4
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
8.5
8.5.1
8.5.2
8.6
The oscillator circuit is designed for use with crystals or ceramic
resonators. The oscillator circuit generates the crystal clock signal,
OSCXCLK, at the frequency of the crystal. This signal is divided by two
before being passed on to the SIM for bus clock generation.
shows the structure of the oscillator. The oscillator requires various
external components.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Low Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Oscillator During Break Mode. . . . . . . . . . . . . . . . . . . . . . . . . 114
Oscillator External Connections . . . . . . . . . . . . . . . . . . . . . . .112
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Crystal Amplifier Input Pin (OSC1). . . . . . . . . . . . . . . . . . . 113
Crystal Amplifier Output Pin (OSC2) . . . . . . . . . . . . . . . . . 113
Oscillator Enable Signal (SIMOSCEN). . . . . . . . . . . . . . . . 113
External Clock Source (OSCXCLK) . . . . . . . . . . . . . . . . . . 113
Oscillator Out (OSCOUT). . . . . . . . . . . . . . . . . . . . . . . . . . 113
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Oscillator (OSC)
Section 8. Oscillator (OSC)
Figure 8-1
Data Sheet
111