![NXP Semiconductors Kinetis KE1xZ256 Reference Manual Download Page 358](http://html1.mh-extra.com/html/nxp-semiconductors/kinetis-ke1xz256/kinetis-ke1xz256_reference-manual_1721813358.webp)
most modules is controlled by the PCC module, some peripherals have clock source
selection/divider inside the module, for details, please see the "
17.2 High-Level clocking diagram
The following diagram shows the high-level clocking architecture and various clock
sources for this device.
Peripheral
Registers
Fast
Slow
OSC
EXTAL
XTAL
LPFLL
DIVCORE
SIRCDIV2_CLK
FIRCDIV2_CLK
SOSCDIV2_CLK
SCG
FLLDIV2_CLK
RTC_CLKIN
PMC
OSC
48~60MHz
8MHz/2MHz
TRIMDIV
IRC
IRC
default start up
DIVSLOW
High Range
OSC
EXTAL32
XTAL32
Low Range
CLKOUT
OSC32
LPO128K
LPO_CLK
PCC
Core
RAM
BUS_CLK/FLASH_CLK
BUSOUT
PCC_xxx[CGC]
OSC32_CLK
CLKOUTDIV
SCG CLKOUT
FLLDIV2
SIRCDIV2
FIRCDIV2
SOSCDIV2
PCC_xxx[PCS]
Async clock
Flash
WDOG
LPTMR
GPIOC
CORE_CLK/SYS_CLK
SYS_CLK
ADCx
FlexIO
LPIT
LPI2Cx
LPUARTx
LPSPIx
RTC_CLKOUT
32kHz
1kHz
RTC
÷128
PORT Control
CRC
8-bit DAC
ACMPx
TSI
DMAMUX
eDMA
PDB
TCLK2
TCLK1
TCLK0
FTMx
PWT
FLL_CLK
SIRC_CLK
FIRC_CLK
SOSC_CLK
SIM_CHIPCTL[CLKOUTSEL]
RTC_CR[LPOS]
SIM_CHIPCTL[RTC32KCLKSEL]
SCG_CLKOUTCNFG
[CLKOUTSEL]
OSC32_CR[ROSCEREFS]
SCG_SOSCCFG[EREFS]
(SCG_LFLLTCFG)
SCG_LPFLLTCFG[TRIMSRC]
SIM_FTMOPT0[FTMxCLKSEL]
SIM_CHIPCTL[PWTCLKSEL]
SCG_SOSCCSR
[SOSCERCLKEN]
0
1
00
01
10
11
0
1
0001 0011 0010 0101
Other
01
00
10
11
0
1
0101
0011
0010
0001
Other
01
00
10
11
00
01
10
11
00
01
10
11
SCG_xCCR[SCS]
(x=R, V, H)
0000
EWM
Figure 17-1. Clocking Diagram
17.3 Clock definitions
The following table describes the clocks in the previous block diagram and other sections
of this document.
Clock name
Description
CORE_CLK
Clocks the ARM core, divided by DIVCORE bits inside SCG
SYS_CLK
Clocks the Crossbar, NVIC, Flash controller, FTM and PDB,
etc. SYS_CLK can run up to CORE_CLK and divided by
DIVCORE bits inside SCG.
Table continues on the next page...
High-Level clocking diagram
Kinetis KE1xZ256 Sub-Family Reference Manual, Rev. 3, 07/2018
358
NXP Semiconductors
Summary of Contents for Kinetis KE1xZ256
Page 2: ...Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 2 NXP Semiconductors...
Page 178: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 178 NXP Semiconductors...
Page 356: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 356 NXP Semiconductors...
Page 410: ...Interrupts Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 410 NXP Semiconductors...
Page 604: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 604 NXP Semiconductors...
Page 634: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 634 NXP Semiconductors...
Page 674: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 674 NXP Semiconductors...
Page 820: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 820 NXP Semiconductors...
Page 1030: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1030 NXP Semiconductors...
Page 1052: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1052 NXP Semiconductors...
Page 1066: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1066 NXP Semiconductors...
Page 1268: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1268 NXP Semiconductors...
Page 1314: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1314 NXP Semiconductors...
Page 1316: ...Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1316 NXP Semiconductors...