mc68hc908jw32 Freescale Semiconductor, Inc, mc68hc908jw32 Datasheet - Page 56

• Manufacturer Part Number: mc68hc908jw32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Clock Generator Module (CGM)
56
SIMOSCEN
From SIM
OSC2
OSC1
CGMVDV
CGMRDV
RDS[3:0]
DETECTOR
DETECTOR
PHASE
R
LOCK
LOCK
REFERENCE
FREQUENCY
OSCILLATOR (OSC) MODULE
DIVIDER
MUL[11:0]
DIVIDER
PHASE-LOCKED LOOP (PLL)
INTERNAL RC OSC
N
XTAL OSC
V
DD
AUTO
CGMPCLK
Figure 5-1. CGM Block Diagram
AUTOMATIC
CGMRCLK
CONTROL
MC68HC908JW32 Data Sheet, Rev. 5
CGMXFC
FILTER
MODE
LOOP
ACQ
PLL ANALOG
FREQUENCY
V
SS
ICLK
CGMXCLK
CGMRCLK
PRE[1:0]
DIVIDER
VRS[7:0]
PLLIE
CONTROLLED
2
OSCILLATOR
INTERRUPT
P
BCS
CONTROL
VOLTAGE
L
VPR[1:0]
PLLF
2
E
CIRCUIT
SELECT
CLOCK
÷
2
÷
*WHEN S = 1,
3
CGMOUT = B
To Timebase Module (TBM)
To SIM
CGMVCLK
A
B
Freescale Semiconductor
1
S*
CGMOUT
To SIM
SIMDIV2
From SIM
To USB
CGMINT
To SIM