Figure 2-5 colpitts oscillator connections (pe7=1), Figure 2-6 pierce oscillator connections (pe7=0), Figure 2-7 external clock connections (pe7=0) – Motorola MC9S12GC-Family User Manual
Page 59: Figure 2-5, Colpitts oscillator connections (pe7=1), Figure 2-6, Pierce oscillator connections (pe7=0), Figure 2-7, External clock connections (pe7=0)
Device User Guide — 9S12C128DGV1/D V01.05
59
Figure 2-5 Colpitts Oscillator Connections (PE7=1)
Figure 2-6 Pierce Oscillator Connections (PE7=0)
Figure 2-7 External Clock Connections (PE7=0)
MCU
C
2
EXTAL
XTAL
Crystal or
VSSPLL
ceramic resonator
C
1
C
DC
*
* Due to the nature of a translated ground Colpitts oscillator a
DC voltage bias is applied to the crystal
.Please contact the crystal manufacturer for crystal DC
MCU
EXTAL
XTAL
R
S
*
R
B
VSSPLL
Crystal or
ceramic resonator
C
2
C
1
* Rs can be zero (shorted) when use with higher frequency crystals.
Refer to manufacturer’s data.
MCU
EXTAL
XTAL
CMOS-COMPATIBLE
EXTERNAL OSCILLATOR
not connected
(VDDPLL-Level)
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