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 | | NXP PCF2123 SPI Real Time Clock |  |   |  | Required properties: |  | - compatible: should be: "nxp,pcf2123" |  |                       or "microcrystal,rv2123" |  | - reg: should be the SPI slave chipselect address |  |   |  | Optional properties: |  | - spi-cs-high: PCF2123 needs chipselect high |  |   |  | Example: |  |   |  | pcf2123: rtc@3 { |  |     compatible = "nxp,pcf2123" |  |     reg = <3> |  |     spi-cs-high; |  | }; | 
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