Advance Information MC68HC908MR16/MC68HC908MR32 — Rev. 4.0

112 Clock Generator Module (CGM) MOTOROLA

Clock Generator Module (CGM)
Figure 8-1. CGM Block Diagram
BCS
PHASE
DETECTOR LOOP
FILTER
FREQUENCY
DIVIDER
VOLTAGE
CONTROLLED
OSCILLATOR
BANDWIDTH
CONTROL
LOCK
DETECTOR
CLOCK
CGMXCLK
CGMOUT
CGMVDV CGMVCLK
SIMOSCEN
CRYSTAL OSCILLATOR
INTERRUPT
CONTROL CGMINT
CGMRDV
PLL ANALOG
÷ 2
CGMRCLK
SELECT
CIRCUIT
LOCK AUTO ACQ
VRS[7:4]
PLLIE PLLF
MUL[7:4]
CGMXFC VSS
VDDA
OSC1
OSC2
TO SIM
TO SIM
PTC2
MONITOR MODE
A
BS*
USER MODE
*WHEN S = 1, CGMOUT = B