MC9S12E32CFU FREESCALE [Freescale Semiconductor, Inc], MC9S12E32CFU Datasheet - Page 74

• Manufacturer Part Number: MC9S12E32CFU
• Description: HCS12 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 1 MC9S12E128 Device Overview (MC9S12E128DGV1)
1.5
The Clock and Reset Generator provides the internal clock signals for the core and all peripheral modules.
Figure 1-10
chapter for details on clock generation.
74
System Clock Description
shows the clock connections from the CRG to all modules. Consult the CRG block description
EXTAL
XTAL
PE7 = XCLKS
OSC
1
0
CRG
Table 1-6. Clock Selection Based on PE7
Figure 1-10. Clock Connections
MC9S12E128 Data Sheet, Rev. 1.07
Colpitts Oscillator selected
Pierce Oscillator/external clock selected
Bus Clock
Oscillator Clock
Description
Core Clock
TIM0, TIM1, TIM2
SCI0, SCI1, SCI2
HCS12 CORE
MEBI
BDM
INT
VREG
Flash
PWM
DAC
PMF
RAM
ATD
PIM
SPI
IIC
MMC
DBG
CPU
Freescale Semiconductor