Datasheet

Device Overview S12XS Family
S12XS Family Reference Manual, Rev. 1.13
Freescale Semiconductor 57
The selected oscillator configuration is frozen with the rising edge of the RESET pin in any of these above
described reset cases.
Figure 1-7. Loop Controlled Pierce Oscillator Connections (XCLKS = 1)
Figure 1-8. Full Swing Pierce Oscillator Connections (XCLKS = 0)
Figure 1-9. External Clock Connections (XCLKS = 0)
MCU
EXTAL
XTAL
V
SSPLL
Crystal or
Ceramic Resonator
C
2
C
1
MCU
EXTAL
XTAL
R
S
R
B
V
SSPLL
Crystal or
Ceramic Resonator
C
2
C
1
R
B
=1MΩ ; R
S
specified by crystal vendor
MCU
EXTAL
XTAL
CMOS-Compatible
External Oscillator
Not Connected