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5.17 Read FPDMA Queued (60h)
Table 43: Read FPDMA Queued (60h)
Command Block Output Registers
Register
Data Low
Data High
Feature
Current
Previous
Sector
Current
Count
Previous
Sector
Current
Number
Previous
Cylinder
Current
Low
Previous
Cylinder
Current
High
Previous
Device/Head
Command
7
6
5
CRC UNC
0
V
Vs
0
The Read FPDMA command reads one or more sectors of data from disk media, and then transfers the data from
the device to the host.
If an uncorrectable error occurs, the read will be terminated at the failing sector.
Output parameters to the device
Feature Previous
Sector Count Current
Tag (bits 7 -3)
Sector Number Current
Sector Number Previous
Cylinder Low Current
Cylinder Low Previous
Cylinder High Current
Cylinder High Previous
Device/Head
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
V V V V V V V V
V V V V V V V V
V V V V - - - -
- - - - - - - -
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
V 1 0 0 - - - -
0 1 1 0 0 0 0 0
Error Register
4
3
2
1
IDN
0
ABT T0N AMN
V
0
V
0
The number of sectors to be transferred high order, bit (15:8)
The TAG value shall be assigned to be different from all other queued commands.
The value shall not exceed the maximum queue depth specified by the Word 75 of
the Identify Device information.
LBA (7:0)
LBA (31:24)
LBA (15:8)
LBA (39:32)
LBA (23:16)
LBA (47:40)
Deskstar 7K500 Hard Disk Drive Serial ATA Addendum
Command Block Input Registers
Register
Data Low
Data High
Error
Sector
Count
Sector
Number
Cylinder
Low
Cylinder
High
Device/Head
Status
0
7
6
BSY RDY DF DSC DRQ
0
0
V
80
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
see below
HOB=0
- - - - - - - -
HOB=1
- - - - - - - -
HOB=0
V V V V V V V V
HOB=1
V V V V V V V V
HOB=0
V V V V V V V V
HOB=1
V V V V V V V V
HOB=0
V V V V V V V V
HOB=1
V V V V V V V V
- - - - - - - -
See below ...
Status Register
5
4
3
2
COR IDX
0
V
-
0
1
0
ERR
-
V
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