NXP Semiconductors K22F series - System Options Register 2 (SIM_SOPT2)

SIM_SOPT1CFG field descriptions (continued)
Field Description
23–10
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
9–8
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
Reserved This field is reserved.
This read-only field is reserved and always has the value 0.
12.2.3 System Options Register 2 (SIM_SOPT2)
SOPT2 contains the controls for selecting many of the module clock source options on
this device. See the Clock Distribution chapter for more information including clocking
diagrams and definitions of device clocks.
Address:
4004_7000h base + 1004h offset = 4004_8004h
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R
0 0
LPUARTSRC
0 0 0
USBSRC
PLLFLLSEL
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bit
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
0
TRACECLKSE
L
0 0
FBSL CLKOUTSEL
RTCCLKOUTS
EL
0
W
Reset
0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0
SIM_SOPT2 field descriptions
Field Description
31–30
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
29–28
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
27–26
LPUARTSRC
LPUART clock source select
Selects the clock source for the LPUART transmit and receive clock.
00 Clock disabled
Table continues on the next page...
Memory map and register definition
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
264 NXP Semiconductors