mc68hc908lj24 Freescale Semiconductor, Inc, mc68hc908lj24 Datasheet - Page 112

• Manufacturer Part Number: mc68hc908lj24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Clock Generator Module (CGM)
Data Sheet
112
SIMOSCEN
From SIM
OSC2
OSC1
CGMVDV
CGMRDV
RDS[3:0]
DETECTOR
DETECTOR
PHASE
R
LOCK
LOCK
See
REFERENCE
OSCILLATOR (OSC) MODULE
FREQUENCY
DIVIDER
MUL[11:0]
DIVIDER
CRYSTAL OSCILLATOR
Section 7. Oscillator
INTERNAL RC OSC
PHASE-LOCKED LOOP (PLL)
N
V
DDA
AUTO
Figure 8-1. CGM Block Diagram
AUTOMATIC
CGMRCLK
CONTROL
CGMXFC
FILTER
MODE
LOOP
Clock Generator Module (CGM)
(OSC).
ACQ
PLL ANALOG
V
FREQUENCY
ICLK
CGMXCLK
CGMRCLK
SSA
PRE[1:0]
DIVIDER
VRS[7:0]
PLLIE
CONTROLLED
2
OSCILLATOR
INTERRUPT
P
CONTROL
VOLTAGE
CGMPCLK
L
RESET: A
VPR[1:0]
A
B
CGMVCLK
PLLF
1
BCS
S
2
E
CGMPCLK
÷
2
MC68HC908LJ24/LK24 — Rev. 2.1
RESET: A
A
B
1
S
BASE
CLOCK
SELECT
CIRCUIT
Freescale Semiconductor
USER MODE:
CGMOUT = B
A
B
1
To SIM (and COP)
T0 RTC, ADC, LCD
S
CGMINT
To SIM
CGMOUT
From SIM
SIMDIV2
CONFIG2
DIV2CLK
To SIM