CSM9S12XDT512SLK Freescale Semiconductor, CSM9S12XDT512SLK Datasheet - Page 120
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CSM9S12XDT512SLK
Manufacturer Part Number
CSM9S12XDT512SLK
Description
KIT STUDENT LEARNING 16BIT
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12XD64CAA.pdf
(1348 pages)
Specifications of CSM9S12XDT512SLK
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Chapter 3 Pierce Oscillator (S12XOSCLCPV1)
3.1.3
Figure 3-1
3.2
This section lists and describes the signals that connect off chip
3.2.1
Theses pins provides operating voltage (V
allows the supply voltage to the XOSC to be independently bypassed.
3.2.2
These pins provide the interface for either a crystal or a CMOS compatible clock to control the internal
clock generator circuitry. EXTAL is the external clock input or the input to the crystal oscillator amplifier.
XTAL is the output of the crystal oscillator amplifier. The MCU internal system clock is derived from the
120
External Signal Description
shows a block diagram of the XOSC.
Block Diagram
V
EXTAL and XTAL — Input and Output Pins
DDPLL
and V
Detector
Peak
EXTAL
SSPLL
MC9S12XDP512 Data Sheet, Rev. 2.21
Figure 3-1. XOSC Block Diagram
— Operating and Ground Voltage Pins
Gain Control
DDPLL
Monitor
Clock
) and ground (V
Rf
V
DDPLL
Monitor_Failure
= 2.5 V
OSCCLK
SSPLL
XTAL
) for the XOSC circuitry. This
Freescale Semiconductor
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