Laptop User Manual

Dual-Core Intel Xeon processor LV / E7520 Chipset / 6300ESB ICH
Dual-Core Intel
®
Xeon
®
processor LV with Intel
®
E7520 Chipset and Intel
®
6300ESB ICH
User’s Manual April 2007
34 Order Number: 311274-009
3.3.13 Platform IRQ Routing
Figure 20 shows how the 6300ESB uses these segments:
• IRQ 14 for IDE segment
• SERIRQ for SIOPIXRQ segment
•PCRIRQ for the PCI-X segment
• PIRQ for the PCI 32/33 segment
Figure 19. SMBus Block Diagram
DIMM #A1
Addr 0xA0
DDR CH A DDR CH B
DIMM #B1
Addr 0xA8
DIMM #A2
Addr 0xA2
DIMM #B2
Addr 0xAA
DIMM #A3
Addr 0xA4
DIMM #B3
Addr 0xAC
3.3V
SMBus
Repeater
DIMM #B4
Addr 0xAE
DIMM #A4
Addr 0xA6
HECETA
7
SMBALERT_N
ICH_SMB
ICH-S
0-ohm
3.3VSBY
PCI Express Slot
(Slot # 3)
PCI Express Slot
(Slot # 4)
PCI Express Slot
(Slot #5)
PCI-X 66MHz Slot
(Slot #7)
PCI 32-bit/33MHz
(Slot #6)
3.3V
CK409B
Intel® E7520-
PF
DB800
SMBus
Repeater
ITP -
XDP
SMBus
Master Only
MCH_SMB
0-ohm
0-ohm
3.3VSBY
Allagash SMBus
SMBus
Repeater
TPM
SMBus
Repeater
ID
EEPROM
PCI-X 66MHz Slot
(Slot #8)