NH82801FBM S L89K Intel, NH82801FBM S L89K Datasheet - Page 380
NH82801FBM S L89K
Manufacturer Part Number
NH82801FBM S L89K
Description
Manufacturer
Intel
Datasheet
1.NH82801FBM_S_L89K.pdf
(786 pages)
Specifications of NH82801FBM S L89K
Lead Free Status / RoHS Status
Compliant
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LPC Interface Bridge Registers (D31:F0)
10.5
10.5.1
10.5.2
.
380
Table 10-4. APIC Direct Registers (LPC I/F—D31:F0)
Table 10-5. APIC Indirect Registers (LPC I/F—D31:F0)
Advanced Programmable Interrupt Controller
(APIC)(D31:F0)
APIC Register Map (LPC I/F—D31:F0)
The APIC is accessed via an indirect addressing scheme. Two registers are visible by software for
manipulation of most of the APIC registers. These registers are mapped into memory space. The
registers are shown in
accessing these registers, accesses must be done one DWord at a time. For example, software
should never access byte 2 from the Data register before accessing bytes 0 and 1. The hardware
will not attempt to recover from a bad programming model in this case.
IND—Index Register (LPC I/F—D31:F0)
Memory Address
Default Value:
The Index Register will select which APIC indirect register to be manipulated by software. The
selector values for the indirect registers are listed in
to select the desired APIC internal register
Table 10-5
FECO_0040h
FEC0_0000h
FEC0_0010h
Bit
7:0
Address
3E–3F
02–0F
12–13
40–FF
10–11
Index
00
01
...
APIC Index — R/W. This is an 8-bit pointer into the I/O APIC register table.
lists the registers which can be accessed within the APIC via the Index Register. When
REDIR_TBL23
Mnemonic
REDIR_TBL0
REDIR_TBL1
Mnemonic
FEC0_0000h
00h
EOIR
DAT
IND
VER
Table
ID
—
—
...
10-4.
Index
Data
EOI
Identification
Version
Reserved
Redirection Table 0
Redirection Table 1
...
Redirection Table 23
Reserved
Register Name
Intel
Register Name
Description
®
I/O Controller Hub 6 (ICH6) Family Datasheet
Attribute:
Size:
Table
10-5. Software will program this register
R/W
8 bits
32 bits
32 bits
8 bits
Size
32 bits
32 bits
64 bits
64 bits
64 bits
Size
—
—
...
R/W, RO
R/W, RO
R/W, RO
Type
R/W
R/W
WO
Type
R/W
RO
RO
RO
...
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