|
307013-003 Datasheet, PDF (273/848 Pages) Intel Corporation – Intel I/O Controller Hub 7 | |||
|
◁ |
Chipset Configuration Registers
7.1.21
RP3BAâRoot Port 3 Base Address Register
Offset Address: 0148â014Fh
Default Value: 00000000000E2000h
Attribute:
Size:
RO
64-bit
7.1.22
Bit
63:32
31:28
27:20
19:15
14:12
11:0
Description
Reserved
Reserved
Bus Number (BN) â RO. This field indicates the root port is on bus #0.
Device Number (DN) â RO. This field indicates the root port is on device #28.
Function Number (FN) â RO. This field indicates the root port is on function #2.
Reserved
RP4DâRoot Port 4 Descriptor Register
Offset Address: 0150â0153h
Default Value: 04xx0002h
Attribute:
Size:
R/WO, RO
32-bit
7.1.23
Bit
31:24
23:16
15:2
1
0
Description
Target Port Number (PN) â RO. This field indicates the target port number is 4h (root
port #4).
Target Component ID (TCID) â R/WO. This field returns the value of the ESD.CID
(offset 0104h, bits 23:16) field programmed by platform BIOS, since the root port is
in the same component as the RCRB.
Reserved
Link Type (LT) â RO. This bit indicates that the link points to a root port.
Link Valid (LV) â RO. When RPC.PC (offset 0224h, bits 1:0) is â10â or â11â, or
FD.PE4D (offset 3418h, bit 19) is set, the link for this root port is not valid (return 0).
When RPC.PC is â00â or â01â and FD.PE4D is cleared, the link for this root port is valid
(return 1).
RP4BAâRoot Port 4 Base Address Register
Offset Address: 0158â015Fh
Default Value: 00000000000E3000h
Attribute:
Size:
RO
64-bit
Bit
63:32
31:28
27:20
19:15
14:12
11:0
Description
Reserved
Reserved
Bus Number (BN) â RO. This field indicates the root port is on bus #0.
Device Number (DN) â RO. This field indicates the root port is on device #28.
Function Number (FN) â RO. This field indicates the root port is on function #3.
Reserved
Intel ® ICH7 Family Datasheet
273
|
▷ |