NH82801HEM S LB9B Intel, NH82801HEM S LB9B Datasheet - Page 502
NH82801HEM S LB9B
Manufacturer Part Number
NH82801HEM S LB9B
Description
Manufacturer
Intel
Datasheet
1.NH82801HEM_S_LB9B.pdf
(890 pages)
Specifications of NH82801HEM S LB9B
Lead Free Status / RoHS Status
Compliant
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12.2
Table 123.
502
Bus Master IDE I/O Registers (D31:F2)
The bus master IDE function uses 16 bytes of I/O space, allocated via the BAR register,
located in Device 31:Function 2 Configuration space, offset 20h. All bus master IDE I/O
space registers can be accessed as byte, word, or dword quantities. Reading reserved
bits returns an indeterminate, inconsistent value, and writes to reserved bits have no
affect (but should not be attempted). These registers are only used for legacy
operation. Software must not use these registers when running AHCI. The description
of the I/O registers is shown in
Bus Master IDE I/O Register Address Map
0Ch–0Fh
Offset
BAR+
04–07
0Ah
0Bh
10h
14h
00
01
02
03
08
09
Mnemonic
BMICS
BMIDS
BMICP
BMISP
BMIDP
BMISS
AIDR
AIR
—
—
—
—
Reserved
Bus Master IDE Status Register Primary
Reserved
Bus Master IDE Descriptor Table Pointer
Primary
Reserved
Bus Master IDE Status Register Secondary
Reserved
Bus Master IDE Descriptor Table Pointer
Secondary
AHCI Index Register
AHCI Index Data Register
Command Register Primary
Command Register Secondary
Table
123.
Register
SATA Controller Registers (D31:F2)
Intel
00000000h
xxxxxxxxh
xxxxxxxxh
xxxxxxxxh
Default
00h
00h
00h
00h
®
—
—
—
—
ICH8 Family Datasheet
R/W, R/WC,
R/W, R/WC,
R/W, RO
Type
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
RO
RO
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