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| 68HC908GR Datasheet, PDF (101/408 Pages) Motorola, Inc – Microcontrollers | |||
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Freescale Semiconductor, Inc.
Clock Generator Module (CGMC)
Functional Description
OSC2
OSCILLATOR (OSC)
OSC1
SIMOSCEN (FROM SIM)
OSCSTOPENB
(FROM CONFIG)
CGMXCLK
(TO: SIM, TIMTB15A, ADC)
PHASE-LOCKED LOOP (PLL)
CGMRDV
REFERENCE
DIVIDER
CGMRCLK
BCS
CLOCK
SELECT
÷2
CIRCUIT
RDS3âRDS0
VDDA
CGMXFC
VSSA
VPR1âVPR0
VRS7âVRS0
CGMOUT
(TO SIM)
PHASE
DETECTOR
LOCK
DETECTOR
LOOP
FILTER
VOLTAGE
CONTROLLED
OSCILLATOR
PLL ANALOG
AUTOMATIC
MODE
CONTROL
INTERRUPT
CONTROL
CGMVCLK
LOCK
AUTO ACQ
PLLIE PLLF
MUL11âMUL0
PRE1âPRE0
CGMVDV
FREQUENCY
DIVIDER
FREQUENCY
DIVIDER
PLLIREQ
(TO SIM)
Figure 7-1. CGMC Block Diagram
MC68HC908GR8 â Rev 4.0
MOTOROLA
Clock Generator Module (CGMC)
For More Information On This Product,
Go to: www.freescale.com
Technical Data
101
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