Intel C2518 FH8065501516710 Data Sheet

Intel

®

 Atom™ Processor C2000 Product Family for Microserver

September 2014

Datasheet, Vol. 2 of 3

Order Number: 330061-002US

561

The SoC contains an integrated I/O Advanced Programmable Interrupt Controller (I/O 

APIC). The I/O APIC priority schemata and advanced Interrupt Request (IRQ) 

management are more complex than the 8259 Programmable Interrupt Controller 

(PIC).

Line interrupts from multiple sources, including legacy devices, are sent to the I/O 

APIC. These interrupts originate from the SoC interrupt decoder, the SoC serial 

interrupt decoder, and the interrupt router in the integrated legacy block. These line-

based interrupts are sent to the CPU local APIC.

I

O

Platform Controller Unit

UART

GP
IO

RT
C

HP
E

T

82
59

I/

O A

P

IC

82
54

iLB

2

I

O

I

O

I

O

I

O

I

O

PMC

I

O

SMBus

0

I

O

LP

C

I

O

S

E

RI

RQ

I

O

SPI

I

O