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Intel® Server Board SE7505VB2
PCI I/O Subsystem
5.1.2.2 P64-B
Arbitration
P64-B supports three PCI masters: two PCI-X slots and the P64H2. All PCI masters must
arbitrate for PCI access using resources supplied by the P64H2.
The host bridge PCI interface
(P64H2) arbitration lines REQx* and GNTx* are a special case in that they are internal to the
host bridge.
The following table defines the arbitration connections.
Table 12. P64-B Arbitration Connections
Baseboard Signals
Device
P64_P_REQ0*/P64_P_GNT0*
PCI-X 100MHz Slot 4
P64_P_REQ1*/P64_P_GNT1*
PCI-X 100MHz Slot 3
5.1.2.3 P64-C
Arbitration
P64-C supports three PCI masters: one PCI slot, Intel 82540EM controller and the P64H2.
All
PCI masters must arbitrate for PCI access, using resources supplied by the P64H2.
The host
bridge PCI interface (P64H2) arbitration lines REQx* and GNTx* are a special case in that they
are internal to the host bridge.
The following table defines the arbitration connections.
Table 13. P64-C Arbitration Connections
Baseboard Signals
Device
P64_S_REQ0*/P64_S_GNT0*
PCI 66MHz Slot 5
P64_S_REQ1*/P64_S_GNT1* Intel
82540EM
Fast Ethenet Controller (NIC 2)
5.2 Serial ATA Controller
The board provides an embedded dual port Serial ATA controller through the use of the Silicon
Image* 3112A ASIC. The Silicon Image 3112A provides a single 32-bit / 33-MHz PCI bus
master interface as a multifunction device, packaged in a 128-pin PQFP. It supports two modes:
base mode and RAID mode.
The Silicon Image 3112A controller supports the following features:
Automatically selects highest available transfer speed for all devices
Supports:
-
UDMA up to 150MB/second
-
All UDMA and PIO modes
-
Up to two SATA devices
-
ACPI and ATA/ATAPI6
RAID 0 and 1
1
On-line mirror rebuilding
RAID set accommodates multiple size HDDs
HDDs function normally when not in RAID sets
Adjustable stripe size for RAID 0
1
RAID functionality available under most operating systems. Check the SE7505VB2 support website at
http://support.intel.com/support/motherboards/server/se7505vb2
for details.
Revision 1.2
Intel part number C32194-002
35