Datasheet

MCU
EXTAL
XTAL
C1
C2
X1
R
F
Figure 8-6. OSC low-power mode connection
8.3.5.3 High-gain configuration
In high-gain mode, when ICS_OSCSC[OSCEN] = 1, ICS_OSCSC[OSCOS] = 1, and
ICS_OSCSC[HGO] = 1, the series resistor R
S
must be used. The series resistor R
S
and
feedback resistor R
F
must be carefully selected to get best performance. The following
figure shows the typical OSC high-gain mode connection.
MCU
EXTAL
XTAL
R
S
C1
C2
X1
R
F
Figure 8-7. OSC high-gain mode connection
8.3.5.4 Initializing external oscillator for peripherals
The following code segment demonstrates initializing external oscillator.
Example: 8.3.5.4.1 External oscillator initialization routine
Initialization / application information
MC9S08PA60 Reference Manual, Rev. 1, 9/2012
208 Freescale Semiconductor, Inc.