MC9S12A256 Motorola, MC9S12A256 Datasheet - Page 71

• Manufacturer Part Number: MC9S12A256
• Description: MC9S12DT256 Device User Guide V03.03
• Manufacturer: Motorola

Section 3 System Clock Description
3.1 Overview
The Clock and Reset Generator provides the internal clock signals for the core and all peripheral modules.
Figure 3-1 shows the clock connections from the CRG to all modules.
Consult the CRG Block User Guide for details on clock generation.
EXTAL
XTAL
CRG
bus clock
oscillator clock
Figure 3-1 Clock Connections
core clock
MC9S12DT256 Device User Guide — V03.03
BDM
CAN0, 1, 2, 3, 4
S12_CORE
SCI0, SCI1
EEPROM
SPI0, 1, 2
ATD0, 1
BDLC
Flash
PWM
RAM
ECT
PIM
IIC
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