mc68hc908gr8b Freescale Semiconductor, Inc, mc68hc908gr8b Datasheet - Page 54
mc68hc908gr8b
Manufacturer Part Number
mc68hc908gr8b
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908GR8B.pdf
(260 pages)
Clock Generator Module (CGM)
54
SIMOSCEN (FROM SIM)
(FROM CONFIG)
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OSCSTOPENB
CGMVDV
OSC2
OSC1
CGMRDV
RDS3–RDS0
DETECTOR
DETECTOR
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PHASE
LOCK
LOCK
REFERENCE
MUL11–MUL0
FREQUENCY
DIVIDER
DIVIDER
PHASE-LOCKED LOOP (PLL)
OSCILLATOR (OSC)
V
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DDA
Figure 4-1. CGM Block Diagram
AUTO
MC68HC908GR8B Data Sheet, Rev. 3.0
AUTOMATIC
CGMRCLK
CGMXFC
CONTROL
FILTER
MODE
LOOP
ACQ
PLL ANALOG
V
SSA
FREQUENCY
PRE1–PRE0
DIVIDER
VRS7–VRS0
PLLIE
x
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CONTROLLED
OSCILLATOR
INTERRUPT
BCS
CONTROL
VOLTAGE
VPR1–VPR0
PLLF
CIRCUIT
SELECT
CLOCK
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CGMVCLK
2
Freescale Semiconductor
(TO: SIM, TIM, ADC)
CGMXCLK
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PLLIREQ
(TO SIM)
CGMOUT
(TO SIM)
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