Functional Architecture
Timer
Keyboard
Cascade
Serial
Serial
ISA
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
56
Super I/O
Figure 9. Interrupt Routing Diagram
C78844-002
Intel® Server Board SE7520JR2
SERIR
SERIRQ
PIRQA
PIRQB
PIRQ
PIRQ
PIRQE
PIRQF
PIRQ
PIRQ
Revision 1.0