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PCXRTC(4) Device Drivers Manual PCXRTC(4)

pcxrtcNXP PCF8563 Real Time Clock

pcxrtc* at iic? addr 0x51

The pcxrtc driver provides support for the NXP PCF8563 Real Time Clock chip.

iic(4), intro(4)

The pcxrtc driver first appeared in OpenBSD 6.2.

The pcxrtc driver was written by Mark Kettenis <>.

July 24, 2017 OpenBSD-6.3