NHE6300ESB S L7XJ Intel, NHE6300ESB S L7XJ Datasheet - Page 651

• Manufacturer Part Number: NHE6300ESB S L7XJ
• Manufacturer: Intel

Specifications of NHE6300ESB S L7XJ

• Lead Free Status / RoHS Status: Compliant

18—Intel
Figure 31. Type ‘1’ to Type ‘0’ Translation
18.4.3
18.4.4
November 2007
Order Number: 300641-004US
®
6300ESB ICH
translation is done for cycles that originate on the Hub Interface and target PCI/PCI-X.
The Intel
transaction under the following conditions:
The resulting Type 0 address to be driven on PCI-X is shown in
numbers are decoded to generate a single ‘1’ in address bits 31:16. When the device
number is greater than 16, then all bits are ‘0’.
Type 1 to Type 1 Forwarding
The Intel
bus under the following conditions.
Type 1 to type 1 forwarding is only done for cycles from the Hub Interface to PCI-X.
Type 1 to Special Cycle Forwarding
The Intel
Interface into a special cycle on PCI-X, but does not translate a type 1 configuration
access on PCI-X to a special cycle on the Hub Interface. A cycle to be translated has the
following attributes in the address:
The address and data are forwarded unchanged. Devices ignore the address and
decode only the bus command. The data phase contains the special cycle message. The
transaction does a master abort but results in a normal completion on the opposite bus
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The bus command is a Configuration read or write transaction.
The low 2 address bits on AD [1:0] are 01b.
The bus number in address field AD [23:16] is equal to the value in the secondary
bus number register in the Intel
The bus command is a configuration read or write transaction.
The low two address bits are equal to 01b.
The bus number falls in the range defined by the lower limit (exclusive) in the
secondary bus number register and the upper limit (inclusive) in the subordinate
bus number register.
The low two address bits on AD[1:0] are equal to 01b.
The device number in address bits AD[15:11] is equal to 11111b.
The function number in address bits AD[10:8] is equal to 111b.
The register number in address bits AD[7:2] is equal to 000000b.
The bus number is equal to the value in the secondary bus number register in
configuration space.
The bus command is a Configuration Write command.
PCI Address
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HL Address
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6300ESB ICH translates a Type 1 configuration transaction into a Type 0
6300ESB ICH forwards a type 1 configuration cycle unchanged to the PCI-X
6300ESB ICH translates a type 1 configuration write transaction on the Hub
31
Reserved '0'
Only one '1'
®
6300ESB ICH configuration space.
16
15
Dev ID
0000
11
10
Intel
Fnc
Fnc
Figure
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6300ESB I/O Controller Hub
7
Register
Register
31. Device
2
1
01
00
0
651
DS