NXP Semiconductors K22F series User Manual

Table 5-1. Clock Summary (continued)
Clock name High Speed Run
mode
clock frequency
Run mode
clock frequency
VLPR mode
clock frequency
Clock source Clock is disabled
when…
stop modes and
during PLL locking
when
MCGOUTCLK
derived from PLL.
MCGFLLCLK Up to 100 MHz Up to 100 MHz N/A MCG MCG clock controls
do not enable.
Overriding forced
disable in all low
powers modes
(including STOP
and VLPx modes).
MCGPLLCLK Up to 120 MHz Up to 120 MHz N/A MCG MCG clock controls
do not enable,
in Stop mode but
PLLSTEN=0,
or in VLPS, LLS
and VLLSx modes
Core clock Up to 120 MHz Up to 80 MHz Up to 4 MHz MCGOUTCLK
clock divider
In all wait and stop
modes
System clock Up to 120 MHz Up to 80 MHz Up to 4 MHz MCGOUTCLK
clock divider
In all stop modes
and Compute
Operation
Bus clock Up to 60 MHz Up to 50 MHz Up to 4 MHz MCGOUTCLK
clock divider
In all stop modes
except for partial
STOP2 mode, and
Compute Operation
FlexBus clock
(FB_CLK)
Up to 30 MHz Up to 30 MHz Up to 4 MHz MCGOUTCLK
clock divider
In all stop modes or
FlexBus disabled
Flash clock Up to 26.67 MHz Up to 26.67 MHz Up to 1 MHz in
BLPE, Up to 800
kHz in BLPI
MCGOUTCLK
clock divider
In all stop modes
except for partial
STOP2 mode
Internal reference
(MCGIRCLK)
30-40 kHz or 4
MHz
30-40 kHz or 4
MHz
4 MHz only MCG MCG_C1[IRCLKEN
] cleared,
Stop or VLPS
mode and
MCG_C1[IREFSTE
N] cleared, or
LLS/VLLS mode
External reference
(OSCERCLK)
Up to 50 MHz
(bypass),
30-40 kHz, or
3-32 MHz (crystal)
Up to 50 MHz
(bypass),
30-40 kHz, or
3-32 MHz (crystal)
Up to 16 MHz
(bypass),
30-40 kHz (low-
range crystal) or
Up to 16 MHz
(high-range crystal)
System OSC System OSC's
OSC_CR[ERCLKE
N] cleared, or
Stop mode and
OSC_CR[EREFST
EN] cleared
Table continues on the next page...
Clock definitions
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
154 NXP Semiconductors

NXP Semiconductors K22F series Specifications

General

Brand	NXP Semiconductors
Model	K22F series
Category	Controller
Language	English