Signal Description
Table 2-18. Intel® 6702PXH 64-bit PCI Hub PCI Transactions
Intel® 6702PXH
Intel® 6702PXH
64-bit PCI Hub As
64-bit PCI Hub As
Type of Transaction
Type of Transaction
Master
Target
Master
Target
0000
Interrupt
No
No
1000
Reserved1
No
No
acknowledge
0001
0010
0011
0100
Special cycle
I/O read
Yes
Yes
Yes
No
No
No
No
No
1001
1010
1011
1100
Reserved1
No
Yes
Yes
No
No
No
Configuration Read
Configuration Write
I/O write
No
Reserved1
Memory Read
Multiple
Yes
0101
0110
0111
Reserved1
Memory read
Memory write
No
Yes
Yes
No
Yes
Yes
1101
1110
1111
Dual Address Cycle
Memory Read Line
Yes
No
No
Yes
Yes
Yes
Memory Write and
Invalidate
NOTE:
1. The Intel® 6702PXH 64-bit PCI Hub never initiates a PCI transaction with a reserved command code and
ignores reserved command codes as a target.
2.12.2.2
PCI-X Transactions
Table 2-19 lists the transactions supported by the Intel® 6702PXH 64-bit PCI Hub when the PCI
Interface is in PCI-X mode.
Table 2-19. PCI-X Transactions Supported
Intel® 6702PXH
64-bit PCI Hub As
Intel® 6702PXH
64-bit PCI Hub As
Type of Transaction
Type of Transaction
Master
Target
Master
Target
0000
Interrupt
acknowledge
No
No
1000
Alias to Memory
Read Block
No
Yes
0001
Special cycle
Yes
No
1001
Alias to Memory
Write Block
No
Yes
0010
0011
0100
0101
0110
I/O read
I/O write
Reserved
Reserved
Yes
Yes
No
No
No
No
No
Yes
1010
1011
1100
1101
1110
Configuration Read
Configuration Write
Split Completion
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
No
Dual Address Cycle
Memory Read
DWord
Yes
Memory Read
Block
0111
Memory Write
Yes
Yes
1111
Memory Write
Block
Yes
Yes
36
Intel® 6702PXH 64-bit PCI Hub Datasheet
INTEL [ INTEL ]
