The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/rtc/nxp,pcf8523.txt

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    1 * NXP PCF8523 Real Time Clock
    2 
    3 Required properties:
    4 - compatible: Should contain "nxp,pcf8523".
    5 - reg: I2C address for chip.
    6 
    7 Optional property:
    8 - quartz-load-femtofarads: The capacitive load of the quartz(x-tal),
    9   expressed in femto Farad (fF). Valid values are 7000 and 12500.
   10   Default value (if no value is specified) is 12500fF.
   11 
   12 Example:
   13 
   14 pcf8523: rtc@68 {
   15         compatible = "nxp,pcf8523";
   16         reg = <0x68>;
   17         quartz-load-femtofarads = <7000>;
   18 };

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