Table 25-1. Clock descriptions (continued)
Clock name
Related clock selector
Related clock divider
Description
FIRCDIV1_CLK
—
SCG_FIRCDIV[FIRCDIV1]
(÷ 1, 2, 4, 8, 16, 32, 64, or
output disabled)
Divided FIRC_CLK
This should be configured to 48 MHz
or less in RUN/HSRUN mode.
FIRCDIV2_CLK
—
SCG_FIRCDIV[FIRCDIV2]
(÷ 1, 2, 4, 8, 16, 32, 64, or
output disabled)
Divided FIRC_CLK
This should be configured to 48 MHz
or less in RUN/HSRUN mode.
SIRCDIV1_CLK
—
SCG_SIRCDIV[SIRCDIV1]
(÷ 1, 2, 4, 8, 16, 32, 64, or
output disabled)
Divided SIRC_CLK
This should be configured to 8 MHz or
less in RUN/HSRUN mode and to 4
MHz or less in VLPR/VLPS mode.
SIRCDIV2_CLK
—
SCG_SIRCDIV[SIRCDIV2](÷
1, 2, 4, 8, 16, 32, 64, or
output disabled
)
Divided SIRC_CLK
This should be configured to 8 MHz or
less in RUN/HSRUN mode and to 4
MHz or less in VLPR mode/VLPS
mode.
SOSCDIV1_CLK
—
SCG_SPLLDIV[SOSCDIV1]
(÷ 1, 2, 4, 8, 16, 32, 64, or
output disabled)
Divided SOSC_CLK
This should be configured to 40 MHz
or less in RUN/HSRUN mode.
SOSCDIV2_CLK
—
SCG_SPLLDIV[SOSCDIV2]
(÷ 1, 2, 4, 8, 16, 32, 64, or
output disabled)
Divided SOSC_CLK
This should be configured to 40 MHz
or less in RUN/HSRUN mode.
1. Only available in MWCT1016S
2. SYS_CLK/CORE_CLK must not be configured to less than BUS_CLK.
3. For FLASH_CLK operating range during parallel boot see
NOTE
Configuring DIVSLOW_CLK to lower frequencies than
supported flash frequencies mentioned in datasheet (fFLASH)
adds wait states and no power saving. It is recommended to
configure DIVSLOW_CLK as close to fFLASH.
25.4 Internal clocking requirements
The clock dividers are programmed via the SCG module’s clock divider registers. The
following requirements must be met when configuring the clocks for this chip:
• CORE_CLK and SYS_CLK clock frequency must be 112 MHz or less in HSRUN
mode and 80 MHz in normal RUN mode (but not configured to be less than
BUS_CLK).
• BUS_CLK frequency must be programmed to 56 MHz or less in HSRUN, 48 MHz
or less in RUN(when using PLL as system clock source maximum bus clock
Internal clocking requirements
MWCT101xS Series Reference Manual, Rev. 3, 07/2019
512
NXP Semiconductors
Summary of Contents for MWCT101 S Series
Page 2: ...MWCT101xS Series Reference Manual Rev 3 07 2019 2 NXP Semiconductors...
Page 42: ...MWCT101xS Series Reference Manual Rev 3 07 2019 42 NXP Semiconductors...
Page 50: ...Conventions MWCT101xS Series Reference Manual Rev 3 07 2019 50 NXP Semiconductors...
Page 70: ...Aliased bit band regions MWCT101xS Series Reference Manual Rev 3 07 2019 70 NXP Semiconductors...
Page 78: ...Pinout diagrams MWCT101xS Series Reference Manual Rev 3 07 2019 78 NXP Semiconductors...
Page 96: ...WCT101xS safety concept MWCT101xS Series Reference Manual Rev 3 07 2019 96 NXP Semiconductors...
Page 130: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 130 NXP Semiconductors...
Page 284: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 284 NXP Semiconductors...
Page 430: ...Functional Description MWCT101xS Series Reference Manual Rev 3 07 2019 430 NXP Semiconductors...
Page 472: ...Application Information MWCT101xS Series Reference Manual Rev 3 07 2019 472 NXP Semiconductors...
Page 528: ...Module clocks MWCT101xS Series Reference Manual Rev 3 07 2019 528 NXP Semiconductors...
Page 634: ...SRAM configuration MWCT101xS Series Reference Manual Rev 3 07 2019 634 NXP Semiconductors...
Page 818: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 818 NXP Semiconductors...
Page 960: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 960 NXP Semiconductors...
Page 992: ...ADC calibration scheme MWCT101xS Series Reference Manual Rev 3 07 2019 992 NXP Semiconductors...
Page 1348: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 1348 NXP Semiconductors...
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Page 1514: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 1514 NXP Semiconductors...
Page 1726: ...Debug and security MWCT101xS Series Reference Manual Rev 3 07 2019 1726 NXP Semiconductors...
Page 1760: ...MWCT101xS Series Reference Manual Rev 3 07 2019 1760 NXP Semiconductors...