Chipset Configuration Registers
Bit
Description
31:24
Reserved
Root Port 6 Config Hide (RP6CH) — RW. This bit is used to hide the root port and
any devices behind it from being discovered by the OS. When set to ‘1’ the root port
will not claim any downstream configuration transactions.
23
22:20
19
Root Port 6 Function Number (RP6FN) — R/WO. These bits set the function
number for PCI Express Root Port 6. This root port function number must be a
unique value from the other root port function numbers
Root Port 5 Config Hide (RP5CH) — RW. This bit is used to hide the root port and
any devices behind it from being discovered by the OS. When set to ‘1’ the root port
will not claim any downstream configuration transactions.
Root Port 5 Function Number (RP5FN) — R/WO. These bits set the function
number for PCI Express Root Port 5. This root port function number must be a
unique value from the other root port function numbers
18:16
15
Root Port 4 Config Hide (RP4CH) — RW. This bit is used to hide the root port and
any devices behind it from being discovered by the OS. When set to ‘1’ the root port
will not claim any downstream configuration transactions.
Root Port 4 Function Number (RP4FN) — R/WO. These bits set the function
number for PCI Express Root Port 4. This root port function number must be a
unique value from the other root port function numbers
14:12
11
Root Port 3 Config Hide (RP3CH) — RW. This bit is used to hide the root port and
any devices behind it from being discovered by the OS. When set to ‘1’ the root port
will not claim any downstream configuration transactions.
Root Port 3 Function Number (RP3FN) — R/WO. These bits set the function
number for PCI Express Root Port 3. This root port function number must be a
unique value from the other root port function numbers
10:8
7
Root Port 2 Config Hide (RP2CH) — RW. This bit is used to hide the root port and
any devices behind it from being discovered by the OS. When set to ‘1’ the root port
will not claim any downstream configuration transactions.
Root Port 2 Function Number (RP2FN) — R/WO. These bits set the function
number for PCI Express Root Port 2. This root port function number must be a
unique value from the other root port function numbers
6:4
3
Root Port 1 Config Hide (RP1CH) — RW. This bit is used to hide the root port and
any devices behind it from being discovered by the OS. When set to ‘1’ the root port
will not claim any downstream configuration transactions.
Root Port 1 Function Number (RP1FN) — R/WO. These bits set the function
number for PCI Express Root Port 1. This root port function number must be a
unique value from the other root port function numbers
2:0
322
Datasheet
INTEL [ INTEL ]
