11.1.12 Offset 3Ch: Interrupt Line; 11.1.13 Offset 3Dh: Interrupt Pin; 11.1.14 Offset 50H: Pci Power Management Capability Id - Intel 6300ESB Datasheet

11.1.12 Offset 3Ch: Interrupt Line

Table 390. Offset 3Ch: Interrupt Line
29
Device:
3Ch
Offset:
00h
Default Value:
Bits Name
7:0 Interrupt Line

11.1.13 Offset 3Dh: Interrupt Pin

Table 391. Offset 3Dh: Interrupt Pin
29
Device:
3Dh
Offset:
04h
Default Value:
Bits Name
7:0 Interrupt Pin

11.1.14 Offset 50h: PCI Power Management Capability ID

Table 392. Offset 50h: PCI Power Management Capability ID
29
Device:
50h
Offset:
01h
Default Value:
Bits Name
7:0
®
Intel 6300ESB I/O Controller Hub
DS
492
Attribute:
Description
This data is not used by the Intel
a scratchpad register to communicate to software the
interrupt line that the interrupt pin is connected to.
Attribute:
Description
The value of 04h indicates that the USB EHCI function within
®
the Intel 6300ESB ICH's multi-function USB device will drive
the fourth interrupt pin from the device–NTD# in PCI terms.
The value of 04h in function 7 is required because the PCI
specification does not recognize more than four interrupts,
and older APM-based OSs require that each function within a
multi-function device has a different Interrupt Pin Register
value.
Internally the USB EHCI controller uses PIRQ[H]#.
Attribute:
Description
A value of 01h indicates that this is a PCI Power Management
capabilities field.
7
Function:
Read/Write
8-bit
Size:
®
6300ESB ICH. It is used as
7
Function:
Read-Only
8-bit
Size:
7
Function:
Read-Only
8-bit
Size:
Order Number: 300641-004US
®
Intel 6300ESB ICH—11
Access
R/W
Access
RO
Access
November 2007