NH82801HEM S LB9B Intel, NH82801HEM S LB9B Datasheet - Page 563
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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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SATA Controller Registers (D31:F5)
13.3
13.3.1
Note:
13.3.2
Note:
Intel
®
ICH8 Family Datasheet
Serial ATA Index/Data Pair Superset Registers
All of these I/O registers are in the core well. They are exposed only when CC.SCC is
01h (i.e. IDE programming interface) and the controller is not in combined mode.
These are Index/Data Pair registers that are used to access the SerialATA superset
registers (SerialATA Status, SerialATA Control and SerialATA Error). The I/O space for
these registers is allocated through SIDPBA. Locations with offset from 08h to 0Fh are
reserved for future expansion. Software-write operations to the reserved locations shall
have no effect while software-read operations to the reserved locations shall return 0.
SINDX—SATA Index Register (D31:F5)
Address Offset: SIDPBA + 00h
Default Value:
These are Index/Data Pair Registers that are used to access the SSTS, SCTL, and
SERR. The I/O space for these registers is allocated through SIDPBA.
SDATA—SATA Index Data Register (D31:F5)
Address Offset: SIDPBA + 04h
Default Value:
These are Index/Data Pair Registers that are used to access the SSTS, SCTL, and
SERR. The I/O space for these registers is allocated through SIDPBA.
31:16
15:8
31:0
7:0
Bit
Bit
Reserved
controller at which the port-specific SSTS, SCTL, and SERR registers are located.
00h = Primary Master (Port 0)
02h = Secondary Master (Port 1)
All other values are Reserved.
Register Index (RIDX)— R/W: This Index field is used to specify one out of three
registers currently being indexed into.
00h = SSTS
01h = SCTL
02h = SERR
All other values are Reserved
Data (DATA)— R/W: This Data register is a “window” through which data is read or
written to the memory mapped registers. A read or write to this Data register triggers a
corresponding read or write to the memory mapped register pointed to by the Index
register. The Index register must be setup prior to the read or write to this Data
register.
Note that a physical register is not actually implemented as the data is actually stored
in the memory mapped registers.
Since this is not a physical register, the “default” value is the same as the default value
of the register pointed to by Index.
Port Index (PIDX)— R/W: This Index field is used to specify the port of the SATA
00000000h
All bits undefined
Description
Description
Attribute:
Size:
Attribute:
Size:
R/W
32 bits
R/W
32 bits
563
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