Intel Xeon® Processor X3430 (8M Cache, 2.40 GHz) BX80605X3430 ユーザーズマニュアル

178

Intel® Xeon® Processor 3400 Series Datasheet, Volume 2

Capability header (capability ID) for this extended function.

11:8

RW

0

VC1 Maximum 
Maximum tags that can be used for VC1 (Azalia) Traffic. Value should not be 

set greater then MaxRequests. It is required that “Pool Index” in 

QPI[0]PORB— QPI[0] Protocol Outgoing Request Buffer be disabled when Isoc 

traffic is enabled. 
When Isoc is enabled this value must be set to >0.
0–7 = Maximum TIDs pending on Intel QuickPath Interconnect with critical 

priority set.
>7 = Reserved
Recommend setting (VC1 max) = 4

7:4

RW

0

VCp Reserved 
Number of TIDs that are reserved for VCp (legacy Isoc) Traffic. The value must 

be less then “MaxRequest minus the Reserved for Critical priority”. Should be 

set no greater than the “VCp Maximum” value.
0–7 = legal values
>7 = reserved
Recommend setting (VCp) = 2

3:0

RW

0

VCp Maximum 
Maximum tags that can be used for VCp (legacy Isoc) Traffic. Value should not 

be set greater then MaxRequests. It is required that “Pool Index” in 

QPI[0]PORB—QPI[0] Protocol Outgoing Request Buffer be disabled when Isoc 

traffic is enabled. When Isoc is enabled this value must be set to >0.
0–7 = Maximum TIDs pending on Intel QuickPath Interconnect with critical 

priority set.
>7 = Reserved
Recommend setting (VCp max) = 4

31:0

RO

000Bh

CAPIDH
000Bh is the Capability ID for vendor specific