Document Outline

• Points of Contact
• Document Status
• New Capabilities added to EDD-4
• Contents
• Tables
• Figures
• Foreword
• Introduction
• 1 Scope
  • Figure 1 - ATA document relationships
• 2 Normative references
  • 2.1 General
  • 2.2 Approved references
    • Table 1 - Approved ANSI References
  • 2.3 References under development
    • Table 2 - References Under Development
  • 2.4 Other references
• 3 Definitions, abbreviations, and conventions
  • 3.1 Definitions and abbreviations
    • 3.1.1
    • 3.1.2
    • 3.1.3
    • 3.1.4
    • 3.1.5
    • 3.1.6
    • 3.1.7
    • 3.1.8
    • 3.1.9
    • 3.1.10
    • 3.1.11
    • 3.1.12
    • 3.1.13
    • 3.1.14
    • 3.1.15
    • 3.1.16
    • 3.1.17
    • 3.1.18
    • 3.1.19
    • 3.1.20
    • 3.1.21
    • 3.1.22
    • 3.1.23
    • 3.1.24
    • 3.1.25
    • 3.1.26
    • 3.1.27
    • 3.1.28
    • 3.1.29
    • 3.1.30
    • 3.1.31
    • 3.1.32
    • 3.1.33
    • 3.1.34
    • 3.1.35
  • 3.2 Symbols and abbreviations
  • 3.3 Conventions
    • 3.3.1 Overview
    • 3.3.2 Precedence
    • 3.3.3 Lists
      • 3.3.3.1 Lists overview
      • 3.3.3.2 Unordered lists
      • 3.3.3.3 Ordered lists
    • 3.3.4 Keywords
    • 3.3.5 Numbering
      • Table 3 - Numbering conventions
    • 3.3.6 Bit conventions
    • 3.3.7 Number range convention
    • 3.3.8 Register and CF Contents
    • 3.3.9 Interrupt Services and Functions
    • 3.3.10 Byte, word, DWord, and QWord Relationships
      • Figure 2 - Byte, word, DWord and QWord relationships
    • 3.3.11 ATA string convention
      • Table 4 - ATA string byte swapping
      • Table 5 - ATA firmware revision example
• 4 Overview
  • Figure 3 - System Component Diagram
• 5 <8GB INT 13h Functions (Conventional Functions)
  • Table 6 - Conventional Register Definitions
  • Table 7 - Conventional Function Definitions
• 6 >8GB INT 13h Functions
  • 6.1 Overview
    • Table 8 - Extended Function Definitions
  • 6.2 Data Structure
    • Table 9 - Device Address Packet
  • 6.3 Removable Media
    • Table 10 - Removable Media Return Codes
  • 6.4 INT 13h Interface Subsets
    • 6.4.1 Overview
    • 6.4.2 Fixed Disk Access Subset
      • Table 11 - Fixed Disk Access
    • 6.4.3 Device Locking and Ejecting Subset
      • Table 12 - Locking and Ejecting
    • 6.4.4 Enhanced Disk Drive (EDD) Support Subset
      • Table 13 - EDD Support
• 7 CD/DVD Boot
  • 7.1 Overview
    • Figure 4 - ISO 9660 CD Layout
    • Figure 5 - Boot CD or DVD with a single boot image
    • Figure 6 - Boot CD or DVD with multiple boot images
  • 7.2 Boot Methods
    • 7.2.1 Overview
    • 7.2.2 Emulation Process
    • 7.2.3 No Emulation Boot
    • 7.2.4 Floppy Boot
      • Table 14 - Floppy Geometries
    • 7.2.5 Hard Drive Boot
  • 7.3 CD/DVD Format
    • 7.3.1 Overview
    • 7.3.2 Boot Volume Descriptor (BVD)
      • Table 15 - Boot Volume Descriptor
    • 7.3.3 Validation Entry
      • Table 16 - Validation Entry
    • 7.3.4 Initial/Default Entry
      • Table 17 - Initial/Default Entry
    • 7.3.5 Section Header
      • Table 18 - Section Header
    • 7.3.6 Section Entry
      • Table 19 - Section Entry
    • 7.3.7 Section Entry Extension
      • Table 20 - Section Entry Extension
• 8 INT 13h Function Definitions
  • 8.1 Overview
  • 8.2 Reset Disk Subsystem (FN 00h)
  • 8.3 Get Status of Last Operation (FN 01h)
  • 8.4 Read Sectors into Memory (FN 02h)
  • 8.5 Write Sectors From Memory (FN 03h)
  • 8.6 Verify Sectors (FN 04h)
  • 8.7 Get Drive Parameters (FN 08h)
  • 8.8 Read Buffer (FN 0Eh)
  • 8.9 Write Buffer (FN 0Fh)
  • 8.10 Get Disk Type (FN 15h)
  • 8.11 Set Media Type (FN 18h)
  • 8.12 Park Heads (FN 19h)
  • 8.13 Identify Device Information (FN 25h)
  • 8.14 Check Extensions Present (FN 41h)
    • Table 21 - Interface Support Bit Map
  • 8.15 Extended Read (FN 42h)
  • 8.16 Extended Write (FN 43h)
  • 8.17 Verify Sectors (FN 44h)
  • 8.18 Lock/Unlock Media (FN 45h)
  • 8.19 Eject Removable Media (FN 46h)
  • 8.20 Get Device Parameters (FN 48h)
    • 8.20.1 Overview
      • Table 22 - Result Buffer
    • 8.20.2 Interface Path
      • Table 23 - Interface Path Definitions (part 1 of 2)
    • 8.20.3 Device Path
      • Table 24 - Device Path Definitions (part 1 of 2)
    • 8.20.4 Device Parameter Table Extension (DPTE)
      • Table 25 - Device parameter table extension
      • 8.20.4.1 Offset 0-1 - I/O port base
      • 8.20.4.2 Offset 2-3 - control port base
      • 8.20.4.3 Offset 4 - head prefix
      • 8.20.4.4 Offset 5 - BIOS use only
      • 8.20.4.5 Offset 6 - IRQ number
      • 8.20.4.6 Offset 7 - READ/WRITE MULTIPLE command block count
      • 8.20.4.7 Offset 8 - DMA channel/Multiword DMA Type
      • 8.20.4.8 Offset 9 - PIO type
      • 8.20.4.9 Offset 10-11 - BIOS selected hardware specific option flags
        • 8.20.4.9.1 Bit 0 - fast PIO
        • 8.20.4.9.2 Bit 1 - fast DMA
        • 8.20.4.9.3 Bit 2 - ATA READ/WRITE MULTIPLE
        • 8.20.4.9.4 Bit 3 - CHS translation
        • 8.20.4.9.5 Bit 4 - LBA translation
        • 8.20.4.9.6 Bit 5 - removable media
        • 8.20.4.9.7 Bit 6 - ATAPI device
        • 8.20.4.9.8 Bit 7 - 32-bit transfer mode
        • 8.20.4.9.9 Bit 8 - ATAPI device uses command packet interrupt
        • 8.20.4.9.10 Bits 9-10 - translation type
          • Table 26 - Translation Type
        • 8.20.4.9.11 Bit 11 - Ultra DMA
        • 8.20.4.9.12 Bit 12 - HPA Active
        • 8.20.4.9.13 Bit 13h - 48-bit LBA addressing enabled
        • 8.20.4.9.14 Bits 14-15 - Reserved
      • 8.20.4.10 Offset 12-13h - Reserved
      • 8.20.4.11 Offset 14 - table revision
      • 8.20.4.12 Offset 15 - checksum
  • 8.21 Get Extended Media Change Status (FN 49h)
  • 8.22 Initiate Disk Emulation (FN 4Ah)
    • Table 27 - CD Specification Packet
  • 8.23 Terminate Disk Emulation (FN 4Bh)
  • 8.24 Initiate Disk Emulation & Boot (FN 4Ch)
  • 8.25 Return Boot Catalog (FN 4Dh)
    • Table 28 - CD Command Packet
  • 8.26 Set Hardware Configuration (FN 4Eh)
    • Table 29 - Hardware Configuration Sub-Functions
  • 8.27 Send Packet Command (FN 50h)
    • 8.27.1 Overview
      • Table 30 - Formatted Command Packet
    • 8.27.2 Packet Sending Service (PSS) For SCSI Command Descriptor Blocks (CDB)
      • 8.27.2.1 Overview
      • 8.27.2.2 Formatted Protocol Specific Data
        • Table 31 - Formatted Protocol Specific Data
      • 8.27.2.3 Output Parameters
        • Table 32 - Output Parameters
  • 8.28 Security Protocol Commands (FN 51h)
    • Table 33 - Data Buffer for Security Protocol Commands
• 9 INT 15h Removable Media Eject
• Annex A
  • A.1 Hybrid MBR boot overview
  • A.2 GPT support for hybrid MBR boot code
    • Table A.1 - Protective MBR with hybrid MBR boot code
    • Figure A.1 - GPT disk layout with hybrid MBR boot code example
    • Figure A.2 - GPT disk layout with hybrid MBR boot code truncation example
  • A.3 Hybrid MBR boot code
  • A.4 Hybrid MBR boot code endeavor procedure
    • Table A.2 - Hybrid MBR endeavor IA-32 register values
    • Table A.3 - Hybrid MBR boot code hand over structure
  • A.5 Hybrid VBR boot code