ANSI INCITS TR 38 : 2007

Foreword
Introduction
1 Scope
2 Definitions and Abbreviations
  2.1 Block Data
  2.2 Byte
  2.3 DWord
  2.4 Pass-Through Command
  2.5 QWord
  2.6 Reserved
  2.7 TF Data
  2.8 Word
3 Overview
4 Command Transport
  4.1 Capability Identification
  4.2 Command Transport
  4.3 Data Transfer
  4.4 SCT Status Request
  4.5 How to Use SCT Commands
      4.5.1 Issuing an SCT command to the drive
  4.6 DRIVE ADDRESSING METHODS
      4.6.1 Logical Block Address
  4.7 SCT Command Nesting and Intermingling with Standard
          commands
  4.8 Resets
5 SCT Command Set
  5.1 Long Sector Access Command
  5.2 LBA Segment Access Command
  5.3 Error Recovery Control Command
  5.4 Feature Control Command
  5.5 SCT Data Table Command
Tables
Figures

Defines a way to pass commands to an ATA device using SMART and/or extended logs.