NXP Semiconductors /LPC176x5x /SYSCON /CLKOUTCFG

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Interpret as CLKOUTCFG

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (SELECTS_THE_CPU_CLOC)CLKOUTSEL 0CLKOUTDIV 0 (CLKOUT_EN)CLKOUT_EN 0 (CLKOUT_ACT)CLKOUT_ACT 0RESERVED

CLKOUTSEL=SELECTS_THE_CPU_CLOC

Description

Clock Output Configuration Register

Fields

CLKOUTSEL

Selects the clock source for the CLKOUT function. Other values are reserved. Do not use.

0 (SELECTS_THE_CPU_CLOC): Selects the CPU clock as the CLKOUT source.

1 (SELECTS_THE_MAIN_OSC): Selects the main oscillator as the CLKOUT source.

2 (SELECTS_THE_INTERNAL): Selects the Internal RC oscillator as the CLKOUT source.

3 (SELECTS_THE_USB_CLOC): Selects the USB clock as the CLKOUT source.

4 (SELECTS_THE_RTC_OSCI): Selects the RTC oscillator as the CLKOUT source.

CLKOUTDIV

Integer value to divide the output clock by, minus one. 0 = Clock is divided by 1 1 = Clock is divided by 2. 2 = Clock is divided by 3. … 15 = Clock is divided by 16.

CLKOUT_EN

CLKOUT enable control, allows switching the CLKOUT source without glitches. Clear to stop CLKOUT on the next falling edge. Set to enable CLKOUT.

CLKOUT_ACT

CLKOUT activity indication. Reads as 1 when CLKOUT is enabled. Read as 0 when CLKOUT has been disabled via the CLKOUT_EN bit and the clock has completed being stopped.

RESERVED

Reserved, user software should not write ones to reserved bits. The value read from a reserved bit is not defined.

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