Intel C2518 FH8065501516710 Data Sheet

Intel

®

 Atom™ Processor C2000 Product Family for Microserver

Datasheet, Vol. 2 of 3

September 2014

520

Order Number: 330061-002US

The SoC contains an MC146818B-compatible Real-Time Clock (RTC) with 256 bytes of 

battery-backed RAM. The real-time clock performs two key functions—keeping track of 

the time of day and storing system data even when the system is powered down. The 

RTC operates on a 32.768-kHz crystal and a 3.3V battery.

The RTC supports two lockable memory ranges. By setting the bits in the configuration 

space, two 8-byte ranges are locked to read and write accesses. This prevents 

unauthorized reading of passwords or other system security information.

The RTC supports a date alarm that allows for scheduling a wake-up event up to 30 

days in advance.

Intel White 

Paper 321088

-

January 2009

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Platform Controller Unit

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PMC

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