Intel E3815 FH8065301567411 Fiche De Données
Codes de produits
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
1962
Datasheet
17.8.1
HBA Capabilities (GHC_CAP)—Offset 0h
This register indicates basic capabilities of the HBA to driver software. The RWO bits in
this register are only cleared upon Backbone Reset.
Access Method
Default: DF20FF02h
1ACh
4
00000000h
1B0h
4
00000000h
1B4h
4
00000000h
1B8h
4
00000000h
1C4h
4
1E022852h
580h
4
00000000h
584h
4
00000000h
Table 194.
Summary of SATA AHCI Memory Mapped I/O Registers—ABAR (Continued)
Offset
Size
Register ID—Description
Default
Value
Type:
Memory Mapped I/O Register
(Size: 32 bits)
GHC_CAP:
ABAR Type:
PCI Configuration Register (Size: 32 bits)
ABAR Reference:
[B:0, D:19, F:0] + 24h
31
28
24
20
16
12
8
4
0
1 1 0 1 1 1 1 1 0 0 1 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 1 0
S64A
SC
QA
SS
N
T
F
SMP
S
SS
S
SA
LP
SA
L
SC
LO
IS
S
SNZO
SAM
SMP
FBS
S
PM
D
SSC
PS
C
NCS
CC
CS
EMS
SX
S
NP
Bit
Range
Default &
Access
Description
31
1h
RW/O
Supports 64-bit Addressing (S64A):
Indicates the S-ATA controller can access 64-bit
data structures. The 32-bit upper bits of the port DMA Descriptor, the PRD Base, and
each PRD entry are read/write.
30
1h
RW/O
Supports Native Command Queuing Acceleration (SCQA):
Indicates the SATA
controller supports Serial-ATA Native Command Queuing. The HBA will handle DMA
Setup FISes in hardware, including support for auto-activate optimization through the
FIS.
29
0h
RO
Supports SNotification Register (SSNTF):
When set to 1, indicates that the HBA
supports the PxSNTF (SNotification) register and its associated functionality. When
cleared to 0, the HBA does not support the PxSNTF (SNotification) register and its
associated functionality.
28
1h
RW/O
Supports Mechanical Presence Switch (SMPS):
When set to 1, the HBA supports
mechanical presence switches on its ports for use in hot plug operations. When cleared
to 0, this function is not supported. This value is loaded by the BIOS prior to OS
initialization.
27
1h
RW/O
Supports Staggered Spin-up (SSS):
Indicates whether the S-ATA controller supports
staggered spin-up on its ports, for use in balancing power spikes. This value is loaded by
platform BIOS prior to OS initialization.
26
1h
RW/O
Supports Aggressive Link Power Management (SALP):
Indicates the S-ATA
controller supports auto-generating link requests to the partial or slumber states when
there are no commands to process. When cleared to 0, software shall treat the
PxCMD.ALPE and PxCMD.ASP bits as reserved.