MC908JB16DWE Datasheet, PDF (96/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

Oscillator (OSC)
7.4.6 Oscillator Out (OSCOUT)
OSCOUT is the divide-by-two signal after the clock doubler circuit. It
runs at the same speed as OSCXCLK, at crystal frequency (f_XCLK). This
signal goes to the SIM, which generates the MCU clocks. OSCOUT will
be divided-by-two again in the SIM and results in the internal bus
frequency being one half of the crystal frequency.
7.5 Low-Power Modes
The WAIT and STOP instructions put the MCU in low-power-
consumption standby modes.
7.5.1 Wait Mode
The WAIT instruction has no effect on the oscillator logic. OSCXCLK
continues to drive to the MCU.
7.5.2 Stop Mode
The STOP instruction disables the OSCXCLK output.
7.6 Oscillator During Break Mode
The oscillator continues to drive OSCXCLK when the chip enters the
break state.
Technical Data
96
Oscillator (OSC)
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor