Intel SE7520BD2 Technical Product Specification

Intel® Server Board SE7520BD2 Technical Product Specification Product Overview
Revision 1.3 Intel Confidential
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SCSI Controller
PXH
ENB
ENB
PCIX 100
Slot2
INTC
INTD
PAIRQ<6>
PAIRQ<7>
PAIRQ<6>
PAIRQ<7>
INTA INTB
TDI
TMS
AD(19)_IDSEL
IDSEL
IDSEL
AD(18)_IDSEL
Quick Switch Mux
PI5C3303
IPN: A95343-001
N-Channel FET
BSS138
IPN: 665805-001
Single Gate
74LVT1G125
IPN: A54899-001
INTA
PAIRQ<4>
8.2K
3.3V
0
0
3.3V
3.3V
3.3V
3.3V
3.3V
4.7K
4.7K 4.7K
4.7K
4.7K
4.7K
PAIRQ<4>
INTB
PAIRQ<5>
PAIRQ<5>
Internal to PXH
MROMB_IDSEL_N
MROMB_PRESENT_N
SCSI_INTA
SCSI_INTB
BE
A
B
C
MROMB_IDSEL
IDSEL_PA19
Figure 9. MROMB Implementation
Table 8. Signal Description/Functionality
PCI Card Signal Baseboard Signal Description
TMS MROMB_IDSEL_N When Asserted, disconnects PAA17_N from SCSI controller
TDI MROMB_PRESENT_N When Asserted, disconnects IRQ’s (SCSI_INTA and SCSI_INTB)
from PXH
INTC SCSI_INTA (PAIRQ<6>) Shared interrupt between PCIX slot and SCSI controller.
INTD SCSI_INTB (PAIRQ<7>) Shared interrupt between PCIX slot and SCSI controller.
Table 9. Quick Switch MUX Functionality
MROMB_IDSEL IDSEL_PA19
0 AD(19)_IDSEL
1 GND

Intel SE7520BD2 Specifications

General

Brand	Intel
Model	SE7520BD2
Category	Server Board
Language	English