S3S12HZ256J3CAA FREESCALE [Freescale Semiconductor, Inc], S3S12HZ256J3CAA Datasheet - Page 46
S3S12HZ256J3CAA
Manufacturer Part Number
S3S12HZ256J3CAA
Description
HCS12 Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.S3S12HZ256J3CAA.pdf
(692 pages)
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Chapter 1 MC9S12HZ256 Device Overview
1.6
The clock and reset generator (CRG) provides the internal clock signals for the core and all peripheral
modules.
Consult the CRG block description chapter for details on clock generation.
46
Figure 1-12
System Clock Description
EXTAL
XTAL
shows the clock connections from the CRG to all modules.
CRG
MC9S12HZ256 Data Sheet, Rev. 2.04
Figure 1-12. Clock Connections
bus clock
oscillator clock
core clock
HCS12 CORE
SSD1, SSD2,
CAN0, CAN1
SSD3, SSD4
SCI0, SCI1
MEBI
BDM
EEPROM
INT
Flash
PWM
RAM
ATD
LCD
TIM
PIM
SPI
MC
IIC
MMC
DBG
CPU
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