Technical Specifications

Intel 64 and IA-32 Architectures Software Developer Manuals

Organization	Short Name	Title	Version	Date	Link
Intel	SDM Vol 1	Volume 1: Basic Architecture		Jun 2021	pdf
Intel	SDM Vol 2	Volume 2: Instruction Set Reference, A-Z		Jun 2021	pdf
Intel	SDM Vol 3	Volume 3: System Programming Guide		Jun 2021	pdf
Intel	SDM Vol 4	Volume 4: Model-Specific Registers		Jun 2021	pdf

Intel Chips Specifications

Organization	Short Name	Title	Version	Date	Link
Intel	x2APIC	Intel 64 Architecture x2APIC Specification		Jun 2008	pdf
Intel	HPET	IA-PC HPET (High Precision Event Timers) Specification	1.0a	Oct 2004	pdf
Intel	PIIX4	82371AB PCI-TO-ISA / IDE Xcelerator (PIIX4)		Apr 1997	pdf
Intel	PIIX/PIIX3	82371FB (PIIX) and 82371SB (PIIX3) PCI ISA IDE Xcelerator		Apr 1997	pdf
Intel	IOAPIC	82093AA I/O Advanced Programmable Interrupt Controller (IOAPIC)		May 1996	pdf
Intel	PIT	8254 Programmable Interval Timer		Sep 1993	pdf
Intel	PIC	8259A Programmable Interrupt Controller (8259A/8259A-2)		Dec 1988	pdf
Intel	DMA	8237/8237-2 High Performance Programmable DMA Controller		May 1979	pdf

BIOS, Boot, and Configuration Specifications

Organization	Short Name	Title	Version	Date	Link
DMTF	SMBIOS	System Management BIOS (SMBIOS) Reference Specification	3.5	Sep 2021	pdf
UEFI Forum	UEFI	Unified Extensible Firmware Interface	2.9	Mar 2021	pdf
UEFI Forum	ACPI	Advanced Configuration and Power Interface	6.4	Jan 2021	pdf html
FSF	Multiboot2	Multiboot2 Specification	2.0	2016	html
FSF	Multiboot	Multiboot Specification	0.6.96	2010	html
Intel	MPS	MultiProcessor Specification	1.4	May 1997	pdf
Intel, Microsoft	APM	Advanced Power Management (APM) BIOS Interface Specification	1.2	Feb 1996	pdf
Compaq, Phoenix, Intel	BBS	BIOS Boot Specification	1.01	Jan 1996	pdf
Phoenix, IBM	El Torito	"El Torito" Bootable CD-ROM Format Specification	1.0	Jan 1995	pdf
Compaq, Phoenix, Intel	PNPBIOS	Plug and Play BIOS Specification	1.0a	May 1994	pdf

PCI Specifications

Organization	Short Name	Title	Version	Date	Link
PCI Express
PCI-SIG	PCIe	PCI Express Base Specification	6.0	Jan 2022
PCI-SIG	PCIe	PCI Express Base Specification	5.0	Jul 2019
PCI-SIG	PCIe	PCI Express Base Specification	4.0	Oct 2017
PCI-SIG	PCIe	PCI Express Base Specification	3.1a	Dec 2015
PCI-SIG	PCIe	PCI Express Base Specification	3.0	Nov 2010
PCI-SIG	PCIe	PCI Express Base Specification	2.1	Mar 2009
PCI-SIG	PCIe	PCI Express Base Specification	2.0	Dec 2006	pdf
PCI-SIG	PCIe	PCI Express Base Specification	1.1	2005
PCI-SIG	PCIe	PCI Express Base Specification	1.0a	2003
PCI-X
PCI-SIG	PCI-X	PCI-X 2.0 Specification	2.0	Jul 2002
PCI-SIG	PCI-X	PCI-X Addendum to the PCI Local Bus Specification	1.0	Sep 1999	pdf
PCI Conventional
PCI-SIG	PCI	PCI Local Bus Specification	3.0	Feb 2004
PCI-SIG	PCI	PCI Local Bus Specification	2.3	Mar 2002
PCI-SIG	PCI	PCI Local Bus Specification	2.2	Dec 1998	pdf
PCI-SIG	PCI	PCI Local Bus Specification	2.1	1995
PCI-SIG	PCI	PCI Local Bus Specification	2.0	1993
Intel	PCI	PCI Local Bus Specification	1.0	1992

ATA Specifications

Organization	Short Name	Title	Version	Date	Link
Serial ATA AHCI
Intel	AHCI	Serial ATA Advanced Host Controller Interface (AHCI)	1.3.1	Nov 2013	pdf
Intel	AHCI	Serial ATA Advanced Host Controller Interface (AHCI)	1.3	Jun 2008	pdf
Intel	AHCI	Serial ATA Advanced Host Controller Interface (AHCI)	1.2	Apr 2007	pdf
Intel	AHCI	Serial ATA Advanced Host Controller Interface (AHCI)	1.1	Feb 2005	pdf
Intel	AHCI	Serial ATA Advanced Host Controller Interface (AHCI)	1.0	Apr 2004	pdf
Serial ATA
SATA-IO	SATA 3.5	Serial ATA Revision 3.5	3.5	Jul 2020
SATA-IO	SATA 3.4	Serial ATA Revision 3.4	3.4	Jun 2018
SATA-IO	SATA 3.3	Serial ATA Revision 3.3	3.3	Feb 2016
SATA-IO	SATA 3.2	Serial ATA Revision 3.2	3.2	Aug 2013
SATA-IO	SATA 3.1	Serial ATA Revision 3.1	3.1	Jul 2011	pdf
SATA-IO	SATA 3.0	Serial ATA Revision 3.0	3.0	Jun 2009	pdf
SATA-IO	SATA 2.6	Serial ATA Revision 2.6	2.6	Feb 2007
SATA-IO	SATA 2.5	Serial ATA Revision 2.5	2.5	Aug 2005
SATA Working Group	SATA 2.0	Serial ATA Revision 2.0	2.0	Apr 2004
SATA Working Group	SATA 1.0	Serial ATA: High Speed Serialized AT Attachment	1.0a	Jan 2003	pdf
Parallel ATA
INCITS T13	ATA/ATAPI-8	AT Attachment with Packet Interface - 8 (ATA/ATAPI-8)	8	Nov 2005	Architecture Model Command Set
INCITS T13	ATA/ATAPI-7	AT Attachment with Packet Interface - 7 (ATA/ATAPI-7)	7	Apr 2004	Vol1 Vol2 Vol3
INCITS T13	ATA/ATAPI-6	AT Attachment with Packet Interface - 6 (ATA/ATAPI-6)	6	Jun 2001	pdf
INCITS T13	ATA/ATAPI-5	AT Attachment with Packet Interface - 5 (ATA/ATAPI-5)	5	Dec 1999	pdf
INCITS T13	ATA/ATAPI-4	AT Attachment with Packet Interface Extension (ATA/ATAPI-4)	4	Aug 1998	zip
INCITS T13	ATA-3	AT Attachment-3 Interface (ATA-3)	3	Jan 1997	pdf
X3T10	ATA-2	AT Attachment Interface with Extensions (ATA-2)	2	Mar 1996	pdf
X3T10	ATA-1	AT Attachment Interface for Disk Drives	1	1994	pdf

SCSI Specifications

Organization	Short Name	Title	Version	Date	Link
X3T10	SCSI-3	SCSI-3 Parallel Interface (SPI)		Feb 1996	pdf
X3T9	SCSI-2	Small Computer System lnterface-2		Jan 1994	pdf
X3T9	SCSI-1	Small Computer System Interface (SCSI)		Jun 1986	pdf
X3T9	SASI	Shugart Associates System Interface (SASI)		Apr 1982	pdf

USB Specifications

Organization	Short Name	Title	Version	Date	Link
Intel	xHCI	eXtensible Host Controller Interface for USB	1.2	Mar 2019	pdf
Intel	EHCI	Enhanced Host Controller Interface Specification for USB	1.0	Mar 2002	pdf
Compaq, Microsoft, National Semiconductor	OHCI	Open Host Controller Interface Specification for USB	1.0a	Sep 1999	pdf
Intel	UHCI	Universal Host Controller Interface (UHCI) Design Guide	1.1	Mar 1996	pdf

Video Display Specifications

Organization	Short Name	Title	Version	Date	Link
GOP
UEFI Forum	GOP	UEFI Graphics Output Protocol	2.9	Mar 2021	pdf
UEFI Forum	GOP	UEFI Graphics Output Protocol	2.0	Jan 2006	pdf
Intel, Microsoft	UGA	EFI Universal Graphics Adapter	1.1	Dec 2002	pdf
VBE
VESA	VBE	VESA BIOS Extension (VBE) Core Functions	3.0	Sep 1998	pdf
VESA	VBE/AF	VESA BIOS Extension/Accelerator Functions (VBE/AF)	1.0	Aug 1996	pdf
VESA	VBE	VESA BIOS Extension (VBE) Core Functions	2.0	Nov 1994	pdf
VESA	VBE	Super VGA BIOS Extension	1.2	Oct 1991	txt
VESA	VBE	Super VGA BIOS Extension	1.1	1990
VESA	VBE	Super VGA BIOS Extension	1.0	Oct 1989	html
VGA (and older)
IBM	VGA	Video Graphics Array		May 1987	pdf
IBM	MCGA	Multi-Color Graphics Array		Jun 1987	pdf
IBM	EGA	Enhanced Graphics Adapter		Aug 1984	pdf
IBM	CGA	Color/Graphics Monitor Adapter		Aug 1981	pdf
IBM	MDA	Monochrome Display Adapter		Aug 1981	pdf