Intel® 500 Series Chipset Family On-Package PCH Datasheet Volume 1

Datasheet

ID Date Version Classification
631119 21/09/2021 00:00:00 Public Content

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GPIO Blink (BK) and Serial Blink (SBK)

Certain GPIOs are capable of supporting blink (BK) and serial blink (SBK). The BK and SBK are implemented as native functions muxed on the selected GPIOs. Refer to the GPIO Implementation document for details. To enable BK or SBK on a GPIO having the capability, BIOS needs to select the assigned native function for BK or SBK on the GPIO.