Intel CONTROLLERS 413808 - Manual (Page 209)

Intel ® 413808 and 413812 I/O Controllers in TPER Mode
October 2007 Developer’s Manual
Order Number: 317805-001US 209
Address Translation Unit (PCI-X)—Intel
®
413808 and 413812
2.14.70 Outbound I/O Window Translate Value Register - OIOWTVR
The Outbound I/O Window Translate Value Register (OIOWTVR) contains the PCI I/O
address used to convert the internal bus access to a PCI address. This address is driven
on the PCI bus as a result of the outbound ATU address translation. See Section
2.2.2.1, “Outbound Address Translation - Internal Bus Transactions” on page 68 for
details on outbound address translation.
The I/O window is from 4138xx internal bus is set via the
“Outbound I/O Base Address
Register - OIOBAR” with the a fixed length of 64 Kbytes.
Table 97. Outbound I/O Window Translate Value Register - OIOWTVR
Bit Default Description
31:16 0000H Outbound I/O Window Translate Value - Used to convert internal bus addresses to PCI addresses.
15:01 0000H Reserved
00 0
Big Endian Byte Swap enable - When set the ATU performs a byte swap on all read/write transactions
through the OIOBAR. When clear, no swap is performed. Refer to Section 2.3, “Big Endian Byte
Swapping” on page 78 for more details.
PCI
IOP
Attributes
Attributes
28 24 20 16 12 8 4 0 31
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rv
rw
rw
Attribute Legend:
RV = Reserved
PR = Preserved
RS = Read/Set
RW = Read/Write
RC = Read Clear
RO = Read Only
NA = Not Accessible
Register Offset
+304H