Chapter 7 S12 Clock, Reset and Power Management Unit (S12CPMU_UHV_V5)
S12ZVHY/S12ZVHL Family Reference Manual, Rev. 1.05
236
Freescale
Semiconductor
shows a block diagram of the XOSCLCP.
Figure 7-2. XOSCLCP Block Diagram
EXTAL
XTAL
Gain Control
VDD=1.8V
Rf
OSCCLK
Peak
Detector
VSS
VSS
VSS
C1
C2
Quartz Crystals
Ceramic Resonators
or
Clock
Monitor
monitor fail
OSCMOD
+
_