MC68HC908AP16CFB datasheet(98/440 Pages) MOTOROLA

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Oscillator (OSC)

Data Sheet

MC68HC908AP Family — Rev. 2.5

MOTOROLA

7.6.2 Crystal Amplifier Output Pin (OSC2)

When the x-tal oscillator is selected, OSC2 pin is the output of the crystal

oscillator inverting amplifier.

When the RC oscillator or internal oscillator is selected, OSC2 pin is the

output of the internal bus clock.

7.6.3 Oscillator Enable Signal (SIMOSCEN)

The SIMOSCEN signal from the system integration module (SIM)

enables/disables the x-tal oscillator, the RC-oscillator, or the internal

oscillator circuit.

7.6.4 CGM Oscillator Clock (CGMXCLK)

The CGMXCLK clock is output from the x-tal oscillator, RC oscillator or

the internal oscillator. This clock drives to CGM and other MCU sub-

systems.

7.6.5 CGM Reference Clock (CGMRCLK)

This is buffered signal of CGMXCLK, it is used by the CGM as the

phase-locked-loop (PLL) reference clock.

7.6.6 Oscillator Clock to Time Base Module (OSCCLK)

The OSCCLK is the reference clock that drives the timebase module.

See Section 12. Timebase Module (TBM).

7.7 Low Power Modes

The WAIT and STOP instructions put the MCU in low-power

consumption standby modes.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

MC68HC908AP16CFB Datasheet(PDF) 98 Page - Motorola, Inc