NHE6300ESB S L7XJ Intel, NHE6300ESB S L7XJ Datasheet - Page 662

• Manufacturer Part Number: NHE6300ESB S L7XJ
• Manufacturer: Intel

Specifications of NHE6300ESB S L7XJ

• Lead Free Status / RoHS Status: Compliant

18.6.1.12Offset 1C: IOBL—I/O Base and Limit
Intel
DS
662
15:1
11:1
09:0
07:0
03:0
01:0
Bits
2
0
8
4
2
0
®
Table 595. Offset 1C: IOBL—I/O Base and Limit
6300ESB I/O Controller Hub
Note: Defines the base and limit, aligned to a 4 Kbyte boundary, of the I/O area of the bridge.
Note: Accesses from PCI-X that are outside the ranges specified result in a master abort.
Addressing
Addressing
Device
Capability
Capability
(IOLA1K)
(IOBA1K)
Offset
I/O Limit
I/O Limit
I/O Limit
I/O Base
I/O Base
I/O Base
Address
Address
Address
Address
[15:12]
[11:10]
[15:12]
[11:10]
(IOBC)
(IOBA)
Name
(IOLA)
(IOLC)
Bits
Bits
Bits
Bits
Accesses from the Hub Interface that are within the ranges specified in this register are
sent to PCI-X when the I/O space enable bit is set.
28
1C
Defines the top address of an address range to determine
when to forward I/O transactions from one interface to the
other. These bits correspond to address lines 15:12 for 4
Kbyte alignment. Bits 11:0 are assumed to be FFFh.
When the EN1K bit is set in the Intel
Configuration register (CNF), these bits become read/write
and are compared with I/O address bits 11:10 to determine
the 1K limit address. When the EN1K bit is cleared, this field
becomes Read Only.
This is hard-wired to 0h, indicating support for only 16-bit I/O
addressing.
Defines the bottom address of an address range to determine
when to forward I/O transactions from one interface to the
other. These bits correspond to address lines 15:12 for
4 Kbyte alignment. Bits 11:0 are assumed to be 000h.
When the EN1K bit is set in the Intel
Configuration register (CNF), these bits become read/write
and are compared with
I/O address bits 11:10 to determine the 1K base address.
When the EN1K bit is cleared, this field becomes Read Only.
This is hard-wired to 0h, indicating support for only 16-bit I/O
addressing.
Description
®
®
Attribute:
6300ESB ICH
6300ESB ICH
Function
Size:
0
Read/Write
16-bit
Order Number: 300641-004US
Reset
Value
0h
00
0h
0h
00
0h
Intel
®
6300ESB ICH—18
November 2007
Access
R/W
R/W
R/W
R/W
RO
RO