Intel SE7520JR2 Technical Manual page 181

Intel® Server Board SE7520JR2
Pin-Side PCI Spec
B Signal
101 HSOn(7)
100 GND
99 +5V
98 INTB# This pin will be connected on
the 2U riser to INT_B# of the
bottom PCI slot, INT_A# of the
middle slot and INT_D# of the
top slot.
97 INTD# This pin will be used by 1U/2U
riser to bring the INT_B#
interrupt from the top and
INT_C# from the middle PCI
slot down to the baseboard.
96 +5V
95 Reserved SLOT_ID_FL, not required as
the risers are unique.
94 +5V
93 IOP INTA SCSI Interrupt A to ZCR. This
pin will be used by 1U/2U riser
to bring the INT_C# interrupt
on the bottom PCI slot down to
the baseboard
92 IOP INTB SCSI Interrupt B to ZCR. This
pin will be used by 1U/2U riser
to bring the INT_D# interrupt
on the bottom PCI slot down to
the baseboard
91 GND
90 CLK3 Highest PCI Slot (SLOT3)
89 GND
88 CLK2 Middle PCI Slot (SLOT2)
87 GND
86 REQ2# Middle PCI Slot (SLOT2)
85 GND
84 Reserved
83 GND
KEY
KEY End of x16 PCI-Express
connector
82 Reserved
81 GND
80 CLK1 Lowest PCI slot (SLOT1)
79 Ground
78 REQ1# Lowest PCI slot (SLOT1)
Revision 1.0
Description Pin-Side
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
C78844-002
Connectors and Jumper Blocks
PCI Spec
A Signal
GND
HSIp(7)
HSIn(7)
GND
ZCR_PRS From TDI of lowest slot only
NT_L
+5V
+5V
ZCR_MSKI From TMS of lowest slot only
D_L
+5V
INTA# This pin will be connected on the
2U riser to INT_A# of the bottom
PCI slot, INT_D# of the middle
slot and INT_C# of the top slot.
INTC# This pin will be used by 1U/2U
riser to bring the INT_A# interrupt
from the top and INT_B# from the
middle PCI slot down to the
baseboard.
GND
REQ3# Highest PCI Slot (SLOT3)
GND
GNT3# Highest PCI Slot (SLOT3)
GND
RST#
GND
Reserved
KEY
KEY
+5V Was Vio 3.3V or 1.5V
Reserved
GND
GNT2# Middle PCI Slot (SLOT2)
+3.3V Was Vio 3.3V or 1.5V
Description
181