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12.58 Trusted Receive (5Ch)
The Trusted Receive command reads one or more 512 byte packets from the drive. The returned packets depend on
the Security Protocol selected (feature). See Trusted Command Feature for details.
The sectors are transferred through the Data Register 16 bits at a time.
Table 245 Trusted Receive Command (5Ch)
Command Input
Field
Description
FEATURE
SECURITY PROTOCOL
COUNT
TRANSFER LENGTH
LBA
Bit Description
27:24 Reserved
23:8 SP SPECIFIC (word)
7:0 TRANSFER LENGTH
DEVICE
Bit Description
7 Obsolete
6 N/A
5 Obsolete
4 Transport Dependent
3:0 Reserved
Command
7:0 E0h
Table 246 SECURITY PROTOCOL field
Value
Description
00h
Return security protocol information
01h..06h
Reserved for TCG
08h..1Fh
Reserved for T10
20h..21h
Reserved
22h..3Fh
Reserved for T10
40h..E9h
Reserved
EAh
Reserved
EBh
Defined for SCSA
ECh
Reserved
EEh
Reserved
EFh
Reserved for T10
F0h..FFh
Vendor Specific
The SP SPECIFIC field provides information defined by the contents of the SECURITY PROTOCOL field. The
meaning of this field is defined by each security protocol.
The TRANSFER LENGTH field is security protocol specific
Normal Outputs
See Normal Outputs in Section 12.7 Flush Cache (E7h)
Error Outputs
See Error Outputs in Section 12.12 Idle (E3h / 97h)
324
Hard Disk Drive Specification