Table 49 Input Registers Of Sct Command Using Write Log Ext; Table 50 Output Registers Of Sct Command Using Write Log Ext - Western Digital Ultrastar DC HC310 Specifications

9.18.2.1.2 Issue SCT Command Using Write Log Ext
Command Block Output Registers
Register
Feature Current
Previous
Sector Count Current
Previous
LBA Low Current
Previous
LBA Mid Current
Previous
LBA High Current
Previous
Device/Head
Command

Table 49 Input Registers of SCT Command Using Write Log Ext

Command Block Input Registers (Success)
Register
Error
Sector Count HOB=0
HOB=1
LBA Low HOB=0
HOB=1
LBA Mid HOB=0 Number of sectors (LSB)
HOB=1
LBA High HOB=0 Number of sectors (MSB) LBA High
HOB=1
Device/Head
Status
All ATA "previous" registers are reserved in Write Log Ext responses.

Table 50 Output Registers of SCT Command Using Write Log Ext

7 6 5 4 3 2 1 0
Reserved
Reserved
01h
00h
E0h
Reserved
00h
00h
Reserved
Reserved
- - - D - - -
3Fh
7 6 5 4 3 2 1 0
00h
Depends on command
(LSB)
Reserved
Depends on command
(MSB)
Reserved
Reserved
Reserved
- - - - - - -
50h
Western Digital Hard Disk Drive OEM Specification
-
Command Block Input Registers (Error)
Register
Error
Sector Count HOB=0
HOB=1
LBA Low HOB=0
HOB=1
LBA Mid HOB=0 Number of sectors (LSB)
HOB=1
HOB=0 Number of sectors (MSB)
HOB=1
- Device/Head
Status
78
7 6 5 4 3 2 1 0
04h
Extended Status Code
(LSB)
Reserved
Extended Status Code
(MSB)
Reserved
Reserved
Reserved
- - - - - - -
51h
-