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11.24 Read Log DMA Ext(47h)
Com m and Block Output Registers
Register
Data Low
Data High
Current
Feature
Previous
Current
Sector Count
Previous
Current
LBA Low
Previous
Current
LBA Mid
Previous
Current
LBA High
Previous
Device
Command
Error Register
7
6
5
4
CRC
UNC
0
IDN
V
V
0
V
Table 182 Read Log DMA Ext Command (47h)
The content of this command is the same as Read Log Ext. See 11.23 Read Log Ext (2Fh)
7
6
5
4
3
2
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- R-
-
-
-
-
-
-
-
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
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
1
0
0
0
1
1
3
2
1
0
0
ABT
T0N
AMN
0
V
0
0
Western Digital Hard Disk Drive OEM Specification
Com m and Block Input Registers
0
Register
-
Data Low
-
Data High
Error
-
V
HOB=0
Sector Count
V
HOB=1
V
HOB=0
LBA Low
-
HOB=1
V
HOB=0
LBA Mid
V
HOB=1
-
HOB=0
LBA High
-
HOB=1
-
Device
1
Status
Status Register
7
6
5
4
BSY
RDY
DF
DSC
0
V
0
V
205
7
6
5
4
3
2
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
...See Below...
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
...See Below...
3
2
1
0
DRQ
COR
IDX
ERR
-
0
0
V
0
-
-
-
-
-
-
-
-
-
-
-
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