mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 81

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

2.1.3
Figure 2-1
Freescale Semiconductor
XCLKS
EXTAL
XTAL
shows a block diagram of the CRG.
RESET
Block Diagram
V
V
XFC
DDPLL
SSPLL
S12X_MMC
Oscillator
Regulator
Monitor
Voltage
Clock
OSCCLK
Power on Reset
Low Voltage Reset
Illegal Address Reset
PLL
CRG
MC9S12XDP512 Data Sheet, Rev. 2.17
Figure 2-1. CRG Block Diagram
PLLCLK
CM fail
Clock and Reset
Clock Quality
COP
Registers
Control
Checker
Generator
Reset
Chapter 2 Clocks and Reset Generator (S12CRGV6)
RTI
Real Time Interrupt
PLL Lock Interrupt
Self Clock Mode
Oscillator Clock
System Reset
Core Clock
Bus Clock
Interrupt
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