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External clocks
6.5.8 UART clocking
UART0 and UART1 modules operate from the fast peripheral clock, which provides
higher performance level for these modules.
6.6 External clocks
The input clocks to the SoC are described in detail in the MCG chapter.
• FlexTimers
• The FlexTimers have an external clock input, FTM_XCLK, which must be no
faster than 1/4 of the bus_clk frequency
• ARM Trace
• TRACE_CLK generated by simple div-by-2 within ARM core and driven out to
pad
• ARM Trace port outputs are synchronous to this clock
104
OSCERCLK
Fast Peripheral clock
CANx_CTRL1[CLKSRC]
Figure 6-6. FlexCAN clock generation
KV4x Reference Manual, Rev. 2, 02/2015
Preliminary
FlexCAN clock
Freescale Semiconductor, Inc.
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