MC68HC908GR16A Datasheet, PDF (58/270 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Clock Generator Module (CGM)
OSC2
OSC1
SIMOSCEN
(FROM SIM)
OSCENINSTOP
(FROM CONFIG)
OSCILLATOR (OSC)
PHASE-LOCKED LOOP (PLL)
CGMXCLK
(TO: SIM, TIMEBASE, ADC)
PHASE
DETECTOR
CGMRCLK
BCS
V_DDA
CGMXFC
V_SSA
CLOCK
SELECT
CIRCUIT
A
CGMOUT
÷ 2 _{B S*}
(TO SIM)
*WHEN S = 1,
CGMOUT = B
VPR1–VPR0
VRS7–VRS0
PTB4
MONITOR
MODE
LOOP
FILTER
VOLTAGE
CONTROLLED
OSCILLATOR
PLL ANALOG
CGMVCLK
USER
MODE
LOCK
DETECTOR
AUTOMATIC
MODE
CONTROL
INTERRUPT
CONTROL
CGMINT
(TO SIM)
LOCK
MUL11–MUL0
AUTO ACQ
PLLIE PLLF
CGMVDV
FREQUENCY
DIVIDER
Figure 4-1. CGM Block Diagram
MC68HC908GR16A Data Sheet, Rev. 1.0
58
Freescale Semiconductor