Datasheet

Internal Clock Generator (S08ICGV4)
MC9S08AC16 Series Data Sheet, Rev. 9
132 Freescale Semiconductor
8.2.3 External Clock Connections
If an external clock is used, then the pins are connected as shown Figure 8-4.
Figure 8-4. External Clock Connections
8.2.4 External Crystal/Resonator Connections
If an external crystal/resonator frequency reference is used, then the pins are connected as shown in
Figure 8-5. Recommended component values are listed in the Electrical Characteristics chapter.
Figure 8-5. External Frequency Reference Connection
8.3 Register Definition
Refer to the direct-page register summary in the Memory chapter of this data sheet for the absolute address
assignments for all ICG registers. This section refers to registers and control bits only by their names.
ICG
XTALEXTAL
V
SS
CLOCK INPUT
NOT CONNECTED
ICG
EXTAL XTALV
SS
C
1
C
2
CRYSTAL OR RESONATOR
R
F
R
S