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11.57 Trusted Send DMA (5Fh)
Com m and Block Output Registers
Register
7
Data
-
Feature
V
Sector Count
V
Sector Number
V
Cylinder Low
V
Cylinder High
V
Device/Head
-
Command
0
Error Register
7
6
5
4
CRC UNC
0
IDN
0
0
0
0
Table 248 Trusted Send DMA Command (5Fh)
The Trusted Send DMA command writes one or more 512 byte packets to the drive. The content of the packets
depend on the Security Protocol selected (feature). See Trusted Command Feature for details.
The host initializes a slave-DMA channel prior to issuing the command. The data transfers are qualified by DMARQ
and are performed by the slave-DMA channel. The device issues only one interrupt per command to indicate that
data transfer has terminated and status is available.
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
-
-
-
-
-
-
-
1
0
1
1
1
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
Register
7
6
Data
-
-
Error
Sector Count
-
-
Sector Number
-
-
Cylinder Low
-
-
Cylinder High
-
-
Device/Head
-
-
Status
Status Register
7
6
5
4
BSY
RDY
DF
DSC DRQ COR
0
V
0
-
283
5
4
3
2
1
0
-
-
-
-
-
-
...See Below ...
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
...See Below ...
3
2
1
0
IDX
ERR
-
0
0
V
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