mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 22

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

Section Number
21.1
21.2
21.3
21.4
21.5
21.6
21.7
21.8
21.9
21.10 Low Power Modes Operation.......................................................................................................................................478
21.11 Interrupts.......................................................................................................................................................................478
22
Introduction...................................................................................................................................................................467
Features and Modes......................................................................................................................................................467
Block Diagram..............................................................................................................................................................468
OSC Signal Descriptions..............................................................................................................................................468
External Crystal / Resonator Connections....................................................................................................................469
External Clock Connections.........................................................................................................................................471
Memory Map/Register Definitions...............................................................................................................................471
21.7.1
Functional Description..................................................................................................................................................473
21.8.1
21.8.2
21.8.3
21.8.4
Reset..............................................................................................................................................................................477
OSC Control Register (OSCx_CR)................................................................................................................472
OSC Module States........................................................................................................................................473
21.8.1.1
21.8.1.2
21.8.1.3
21.8.1.4
OSC Module Modes.......................................................................................................................................475
21.8.2.1
21.8.2.2
21.8.2.3
21.8.2.4
Counter...........................................................................................................................................................477
Reference Clock Pin Requirements...............................................................................................................477
Off..............................................................................................................................................474
Oscillator Start-Up.....................................................................................................................474
Oscillator Stable.........................................................................................................................475
External Clock Mode.................................................................................................................475
Low-Frequency, High-Gain Mode.............................................................................................476
Low-Frequency, Low-Power Mode...........................................................................................476
High-Frequency, High-Gain Mode............................................................................................476
High-Frequency, Low-Power Mode..........................................................................................477
MCF51JF128 Reference Manual, Rev. 2, 03/2011
Oscillator (OSC)
Chapter 21
Preliminary
Title
Freescale Semiconductor, Inc.
Page