OSC
V
SS
Clock Input
I/O
XTAL
EXTAL
Figure 26-5. External Clock Connections
26.7 Memory Map/Register Definitions
Some oscillator module register bits are typically incorporated into other peripherals such
as MCG or SIM.
OSC Memory Map/Register Definition
OSC memory map
Absolute
address
(hex)
Register name
Width
(in bits)
Access Reset value
Section/
page
4006_5000 OSC Control Register (OSC_CR)
8
R/W
00h
4006_5002 OSC_DIV (OSC_OSC_DIV)
8
R/W
00h
26.71.1 OSC Control Register (OSC_CR)
NOTE
After OSC is enabled and starts generating the clocks, the
configurations such as low power and frequency range, must
not be changed.
Address: 4006_5000h base + 0h offset = 4006_5000h
Bit
7
6
5
4
3
2
1
0
Read
Write
Reset
0
0
0
0
0
0
0
0
26.7.1
Chapter 26 Oscillator (OSC)
K22F Sub-Family Reference Manual , Rev. 3, 7/2014
Freescale Semiconductor, Inc.
573
