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| MC68HC08AZ16 Datasheet, PDF (108/527 Pages) Motorola, Inc – HCMOS Microcontroller Unit | |||
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Clock Generator Module (CGM)
I/O Signals
SIMOSCEN
OSC1
RB
X1
C1
CGMXCLK
OSC1
RS*
VSSA
C2
CGMXFC
CF
VDDA
VDD
CBYP
*RS can be zero (shorted) when used with higher-frequency crystals. Refer to manufacturerâs data.
Figure 3. CGM external connections
I/O Signals
The following paragraphs describe the CGM I/O signals.
Crystal amplifier
input pin (OSC1)
The OSC1 pin is an input to the crystal oscillator amplifier.
Crystal amplifier
The OSC2 pin is the output of the crystal oscillator inverting amplifier.
output pin (OSC2)
External filter
capacitor pin
(CGMXFC)
The CGMXFC pin is required by the loop filter to filter out phase
corrections. A small external capacitor is connected to this pin.
13-cgm
MOTOROLA
Clock Generator Module (CGM)
MC68HC08AZ32
107
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