Offset 2Eh - 2Fh: Ide_Sid-Subsystem Id (Ide-D31:F1); Offset 3Ch: Intr_Ln-Interrupt Line Register (Ide-D31:F1) - Intel 6300ESB Datasheet

9.1.17 Offset 2Eh - 2Fh: IDE_SID—Subsystem ID (IDE—
D31:F1)
Table 339. Offset 2Eh - 2Fh: IDE_SID—Subsystem ID (IDE—D31:F1)
31
Device:
2Eh-2Fh
Offset:
0000h
Default Value:
No
Lockable:
Bits Name
15:0 Subsystem ID (SID)
9.1.18 Offset 3Ch: INTR_LN—Interrupt Line Register
(IDE—D31:F1)
Table 340. Offset 3Ch: INTR_LN—Interrupt Line Register (IDE—D31:F1)
31
Device:
3Ch
Offset:
00h
Default Value:
Bits Name
7:0 Interrupt Line
®
Intel 6300ESB I/O Controller Hub
DS
446
Attribute:
Power Well:
Description
The SID register, in combination with the SVID register,
enables the operating system (OS) to distinguish subsystems
from each other. Software (BIOS) sets the value in this
register. After that, the value may be read, but subsequent
writes to this register have no effect. The value written to this
register will also be readable through the corresponding SID
registers for the USB UHCI #1, USB UHCI #2, and SMBus
functions.
NOTE: Write accesses to the SID register should only be
done as 16-bit accesses. If two 8-bit write accesses
are done, then the value in the register will not be
correct.
Attribute:
Description
This data is not used by the Intel
communicate to software the interrupt line which the
interrupt pin is connected to.
1
Function:
Read/Write Once
16-bit
Size:
Core
1
Function:
Read/Write
8-bit
Size:
®
6300ESB ICH. It is used to
Order Number: 300641-004US
®
Intel 6300ESB ICH—9
Access
R/Write-Once
Access
R/W
November 2007