MC68HC908AT32 Datasheet, PDF (94/378 Pages) Freescale Semiconductor, Inc – Microcontrollers

Clock Generator Module (CGM)
OSC2
CRYSTAL OSCILLATOR
OSC1
SIMOSCEN
CGMRDV
CGMRCLK
CLOCK
SELECT
÷2
CIRCUIT
BCS
V_DDA CGMXFC
V_SS
VRS7–VRS4
PHASE
DETECTOR
LOCK
DETECTOR
LOOP
FILTER
VOLTAGE
CONTROLLED
OSCILLATOR
PLL ANALOG
BANDWIDTH
CONTROL
INTERRUPT
CONTROL
CGMXCLK
STOP RECOVERY COUNTER,
COP PRESCALER,
RESET COUNTER,
SCI BAUD RATE GENERATOR
÷2
A
CGMOUT _{CPU CLOCK,}
BS
BUS CLOCK
WHEN S = 0, CGMOUT = B
USER MODE
PC3 PIN
MONITOR MODE
CGMINT
LOCK
CGMVDV
AUTO ACQ
MUL7–MUL4
PLLIE PLLF
FREQUENCY
DIVIDER
CGMVCLK
Figure 8-1. CGM Block Diagram
MC68HC908AT32 Data Sheet, Rev. 3.1
94
Freescale Semiconductor