mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 114

• Manufacturer Part Number: mc68hc708mp16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Clock Generator Module (CGM)
8.5 I/O Signals
8.5.1 Crystal Amplifier Input Pin (OSC1)
8.5.2 Crystal Amplifier Output Pin (OSC2)
8.5.3 External Filter Capacitor Pin (CGMXFC)
Technical Data
114
*R
S
can be zero (shorted) when used with higher-frequency crystals. Refer to manufacturer’s data.
SIMOSCEN
OSC1
C
1
The following paragraphs describe the CGM I/O signals.
The OSC1 pin is an input to the crystal oscillator amplifier.
The OSC2 pin is the output of the crystal oscillator inverting amplifier.
The CGMXFC pin is required by the loop filter to filter out phase
corrections. A small external capacitor is connected to this pin.
R
X
B
1
Figure 8-3. CGM External Connections
Clock Generator Module (CGM)
OSC2
R
C
S
*
2
CGMXCLK
V SS
CGMXFC
C
F
MC68HC708MP16
Freescale Semiconductor
V DDA
C
BYP
V DD
—
Rev. 3.1