mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 434

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

Introduction
434
External Reference Clock
Peripheral BUSCLK
SCFTRIM
Figure 20-1. Multipurpose Clock Generator (MCG) Block Diagram
SCTRIM
FCTRIM
Auto Trim Machine
PRDIV
FRDIV
n=0-7
External
/ 2
/(1,2,3,4,5....,25)
Monitor
Clock
ATMS
CME
n
Generator
Reference
IREFST
PLLCLKEN
CLKST
ATMST
Internal
PLLST
IRCST
Clock
/ 2
MCF51JF128 Reference Manual, Rev. 2, 03/2011
5
OSCINIT
EREFS
RANGE
HGO
IREFS
Crystal Oscillator
Slow Clock
Fast Clock
/(24,25,26,...,55)
Preliminary
DMX32
Detector
DRS
Phase
VDIV
PLLCLKEN
IREFS
CLKS
PLLS
/ 2
/ 2
Filter
STOP
Charge
Internal
IREFSTEN
DCOOUT
IRCLKEN
Pump
Filter
DCO
IRCS
LP
Multipurpose Clock Generator (MCG)
FLL
VCOOUT
VCO
MCG Crystal Oscillator
IRCSCLK
PLLS
Enable Detect
PLL
Sync
CLKS
CLKS
Freescale Semiconductor, Inc.
CORECLK
LOLS LOCK
Detector
LOLIE
Lock
Clock
CLKSW
Valid
MCGOUTCLK
MCGFLLCLK
MCGBDCCLK
MCGPLLCLK
MCGIRCLK
MCGFFCLK