OSC
V
SS
R
F
Crystal or Resonator
XTAL EXTAL
Figure 25-3. Crystal/Ceramic Resonator Connections - Connection 2
NOTE
Connection 1 and Connection 2 should use internal capacitors
as the load of the oscillator by configuring the CR[SCxP] bits.
OSC
V
SS
C
x
C
y
R
F
Crystal or Resonator
XTAL EXTAL
Figure 25-4. Crystal/Ceramic Resonator Connections - Connection 3
25.6 External Clock Connections
In external clock mode, the pins can be connected as shown below.
NOTE
XTAL can be used as a GPIO when the GPIO alternate function
is configured for it.
External Clock Connections
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
408 Freescale Semiconductor, Inc.
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