Functional Architecture

Intel® Server Board SE7520JR2

Super I/O

Timer

Serialized

Keyboard

 

Cascade

 

 

 

Serial

IRQ

Serial

ISA

Interface

 

Floppy/IS

 

ISA

 

RTC

SCI/ISA

ISA

ISA

Mouse/IS

Coprocessor

P_IDE/IS

Not Used

USB 1.1 Controller #1 and #4 Video

USB 1.1 Controller #3, Native IDE and SATA

USB 1.1 Controller #2

Option for SCI, TCO, HPET#0,1,2 Option for SCI, TCO, HPET#0,1,2 Option for SCI, TCO, HPET#0,1,2

USB 2.0 EHCI Controller #1, Option for SCI, TCO, HPET#0,1,2

SERIR

SERIRQ

Routing Interrupt R-ICH5

PIRQA

PIRQB

PIRQ

PIRQ

PIRQE

PIRQF

PIRQ

PIRQ

Figure 9. Interrupt Routing Diagram

56

Revision 1.0

 

C78844-002