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10.18.2.1.2 Issue SCT Command Using Write Log Ext
Table 42 Output Registers of SCT Command Using Write Log Ext
Command Block Output Registers
Register
7 6 5 4 3 2 1 0
Current
Reserved
Feature
Previous
Reserved
Current
01h
Sector Count
Previous
00h
Current
E0h
LBA Low
Previous
Reserved
Current
00h
LBA Mid
Previous
00h
Current
Reserved
LBA High
Previous
Reserved
Device/Head
-
-
-
D -
-
-
-
Command
3Fh
Table 43 Input Registers of SCT Command Using Write Log Ext
Command Block Input Registers (Success)
Command Block Input Registers (Error)
Register
7 6 5 4 3 2 1 0 Register
7 6 5 4 3 2 1 0
Error
00h
Error
04h
HOB=0 Depends on command
HOB=0 Extended Status Code
(LSB)
(LSB)
Sector Count
Sector Count
HOB=1 Reserved
HOB=1 Reserved
HOB=0 Depends on command
HOB=0 Extended Status Code
(MSB)
(MSB)
LBA Low
LBA Low
HOB=1 Reserved
HOB=1 Reserved
HOB=0 Number of sectors (LSB)
HOB=0 Number of sectors (LSB)
LBA Mid
LBA Mid
HOB=1 Reserved
HOB=1 Reserved
HOB=0 Number of sectors (MSB)
HOB=0 Number of sectors (MSB)
LBA High
LBA High
HOB=1 Reserved
HOB=1 Reserved
Device/Head
-
-
-
-
-
-
-
-
Device/Head
-
-
-
-
-
-
-
-
Status
50h
Status
51h
All ATA “previous” registers are reserved in Write Log Ext responses.
87
Hard Disk Drive Specification