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Intel® Server Board SDS2 I/O Subsystem
Revision 1.2
Order Number: A85874-002
13
Table 4. P64-B Configuration IDs
IDSEL Value Device
24 PCI Slot 1
25 PCI Slot 2
Table 5. P64-C Configuration IDs
IDSEL Value Device
20 Adaptec AIC-7899W SCSI Controller
24 PCI Slot 5
25 PCI Slot 6
4.1.2.2 P64-B Arbitration
P64-B supports three PCI masters (PCI masters from slots 1 and 2, and CIOB). All PCI
masters must arbitrate for PCI access, using resources supplied by the CIOB. The following
table defines the arbitration connections.
Table 7. P64-B Arbitration Connections
Baseboard Signals Device
FREQL1 / FGNTL1 PCI Slot 1
FREQL2 / FGNTL2 PCI Slot 2
4.1.2.3 P64-C Arbitration
P64-C supports four PCI masters (PCI masters from slots 5 and 6, onboard SCSI, and CIOB).
All PCI masters must arbitrate for PCI access, using resources supplied by the CIOB. The
following table defines the arbitration connections.
Table 8. P64-B Arbitration Connections
Baseboard Signals Device
SCSIREQL0 / SCSIGNTL0 Adaptec AIC-7899W SCSI Controller
P64REQL1 / P64GNTL1 PCI Slot 5
P64REQL2 / P64GNTL2 PCI Slot 6