876784 Intel, 876784 Datasheet - Page 667

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

PCI Express* Configuration Registers (Desktop and Mobile Only)
18.1.1
18.1.2
18.1.3
Intel
®
ICH7 Family Datasheet
VID—Vendor Identification Register
(PCI Express—D28:F0/F1/F2/F3/F4/F5)
Address Offset: 00h
Default Value:
DID—Device Identification Register
(PCI Express—D28:F0/F1/F2/F3/F4/F5)
Address Offset: 02h–03h
Default Value:
PCICMD—PCI Command Register
(PCI Express—D28:F0/F1/F2/F3/F4/F5)
Address Offset: 04h–05h
Default Value:
15:11
15:0
15:0
Bit
Bit
Bit
10
9
8
7
6
Device ID — RO. This is a 16-bit value assigned to the Intel
controller. Refer to the Intel
for the value of the Device ID Register.
Reserved
Interrupt Disable — R/W. This bit disables pin-based INTx# interrupts on enabled
Hot-Plug and power management events. This bit has no effect on MSI operation.
0 = Internal INTx# messages are generated if there is an interrupt for Hot-Plug or
1 = Internal INTx# messages will not be generated.
NOTE: This bit does not affect interrupt forwarding from devices connected to the root
Fast Back to Back Enable (FBE) — Reserved per the PCI Express* Base Specification.
SERR# Enable (SEE) — R/W.
0 = Disable.
1 = Enables the root port to generate an SERR# message when PSTS.SSE is set.
Wait Cycle Control (WCC) — Reserved per the PCI Express Base Specification.
Parity Error Response (PER) — R/W.
0 = Disable.
1 = Indicates that the device is capable of reporting parity errors as a master on the
Vendor ID — RO. This is a 16-bit value assigned to Intel
power management and MSI is not enabled.
backbone.
port. Assert_INTx and Deassert_INTx messages will still be forwarded to the
internal interrupt controllers if this bit is set.
8086h
Port 1= Bit Description
Port 2= Bit Description
Port 3= Bit Description
Port 4= Bit Description
Port 5= Bit Description
Port 6= Bit Description
0000h
–
01h
®
I/O Controller Hub 7 (ICH7) Family Specification Update
Description
Description
Description
Attribute:
Size:
Attribute:
Size:
Attribute:
Size:
®
RO
16 bits
RO
16 bits
R/W, RO
16 bits
ICH7 PCI Express
667