Intel N2820 FH8065301616603 Data Sheet
Product codes
FH8065301616603
Serial ATA (SATA)
226
Datasheet
13.11
SATA Primary Read Control IO Registers
13.11.1
Primary Channel Alternate Status register (P_ALT_STATUS)—
Offset 2h
Access Method
Default: 00h
Table 106.
Summary of SATA Primary Read Control I/O Registers—PCTLIDEBA
Offset
Size
Register ID—Description
Default
Value
2h
1
00h
Type: I/O Register
(Size: 8 bits)
P_ALT_STATUS: [PCTLIDEBA] + 2h
PCTLIDEBA Type: PCI Configuration Register (Size: 32 bits)
PCTLIDEBA Reference: [B:0, D:19, F:0] + 104h
PCTLIDEBA Reference: [B:0, D:19, F:0] + 104h
7
4
0
0
0
0
0
0
0
0
0
P_
AL
T_ST
A
T
U
S
_BSY
P_
AL
T_ST
A
T
US
_DRD
Y
P_
A
LT
_
ST
A
T
U
S
_D
F
RSV
D
0
P_A
LT_ST
A
T
US
_DRQ
RSV
D
1
P_
AL
T_ST
A
T
US
_ERR_C
H
K
Bit
Range
Default &
Access
Description
7
0h
RW
BUSY (P_ALT_STATUS_BSY): BUSY.
6
0h
RW
Device Ready (P_ALT_STATUS_DRDY): Device Ready.
5
0h
RW
Device Fault/Stream Error (P_ALT_STATUS_DF): Device Fault/Stream Error.
4
0b
RO
RSVD0: Reserved
3
0h
RW
Data Request (P_ALT_STATUS_DRQ): Data Request.
2:1
0b
RO
RSVD1: Reserved
0
0h
RW
ERR/CHK (P_ALT_STATUS_ERR_CHK): ERR/CHK.