Freescale Semiconductor 56F8122 - Manual (Page 29)

Registers
56F8322 Technical Data, Rev. 10.0
Freescale Semiconductor 29
Preliminary
Figure 3-4 Internal Clock Operation
3.5 Registers
When referring to the register definitions for the OCCS in the 56F8300 Peripheral User Manual, use the
register definitions with the internal Relaxation Oscillator, since the 56F8322 and 56F8122 contain this
oscillator.
Crystal
OSC
Relaxation
OSC
CLK_MODE
XTAL
EXTAL
MUX
MUX PRECS
PLLCID
PLL
x (1 to 128)
Postscaler
ч
(1, 2, 4, 8)
ч
2
Prescaler
÷
(1, 2, 4, 8)
Lock
Detector
Loss of
Reference
Clock
Detector
MUX
SYS_CLK2
source to the
SIM
Postscaler CLK
PLLDB PLLCOD
LCK
Bus Interface
& Control
Bus
Interface
FREF
FEEDB
A
CK
loss of reference
clock interrupt
MS
TR
_
O
S
C
F
OUT
F
OUT
/2
ZSRC