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BuildOrBuy News - ATAPI - Parallel ATA Specs
  1. ATA / ATAPI & Serial ATA Technology Map  (June 2000).
  2. images/bullet2.gifATA-ATAPI.COM -- ATA ATAPI IDE EIDE SCSI 1394 -- by Hale Landis
  3. images/bullet2.gifT13 Technical Committee - AT Attachment:
  4. PC Hardware FAQ-enhanced IDE Index
  5. Peter den Haan's EIDE-Ultra-ATA storage page

Parallel ATA (Advanced Technology Attachment) specification for IDE/EIDE HD's. ATAPI (ATA Packet Interface) defines the IDE standard for CD-ROMs & Tape Drives. There are currently Six Parallel ATA standards published.

The ATA/ATAPI-6 standard defines a method for 48-bit addressing on a single drive, giving more than 144 petabytes (144,000,000 gigabytes) of storage. 137 GB decimal (128 GB binary) Limitation - October 29, 2001.

ATA/ATAPI-6 Also defines a new method for extending the maximum amount of data that can be transferred per command for ATA devices from 256 sectors (about 131 kilobytes) to 65,536 sectors (about 33 megabytes). See: Bios HD Limitations.

  1. BIOS Settings for Native-Mode-Capable ATA Controllers: WinXP SP1 & Windows Server 2003 - "...switch a native-mode-capable ATA controller from compatible mode (legacy IDE controller) to native mode (acting as a true PCI device) if the BIOS indicates that the controller can be switched, the controller supports native mode and the appropriate registry key is set." (11/8/2003)
  2. 260233 - Support for ATA 100 (Mode 5 ) in Windows 2000: Install SP2!
  3. images/bullet2.gifSerial ATA - High Speed Serialized AT Attachment
  4. images/bullet2.gifPlextor University - 80-Conductor ULTRA ATA Cable: 80 Wire / 40 Pin
  5. images/bullet2.gifPCGuide - Ref - IDE-ATA Configuration and Cabling
  6. images/bullet2.gifDMA Mode for ATA-ATAPI Devices in Windows XP:
  7. images/bullet2.gifEZCD2 CD Copier Controllers (12/26/2002).

From www.Maxtor.com Tech Bulletins - Cable Requirements: An 80-Wire UDMA Interface Cable is REQUIRED for all UDMA/66/100 hard drives. It is recommended for all UDMA/33 hard drives.

ATA Transfer Rates (MBytes/sec) are Burst Mode. Specs quoted below should be balanced with the HD Specs of Buffer to Host & Buffer to Disk Data Transfer Rates for actual HD Drive Data Throughput values.

Spec Chart below quoted, in part, from ComputerLanguage.com - The Best Computer Dictionary & Seagate! Enjoy! GB.

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Promise
 
 
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IDE Drive Type PIO Mode Transfer rate MBytes/sec DMA Mode Transfer rate MBytes/sec
ATA 0 3.3 0 4.2
ATA 1 5.2
ATA 2 8.3
 
ATA-2, 3 3 11.1 1 13.3
ATA-2, 3 4 16.6 2 16.6
 
ATA-4 (ATA-33) 2 33.3
 
ATA-5 0 16.6
ATA-5 1 25.0
ATA-5 (ATA-33) 2 33.3
ATA-5 3 44.4
ATA-5 (ATA-66) 4 66.6
 
ATA-6 (ATA-100) 5 100.0
ATA-7 (ATA-133) 6 133
images/bullet2.gifSerial ATA 150 +
images/bullet2.gifSerial ATA IO - Dispelling the Confusion: SATA II does not mean 3Gb/s:
SATA 1.5Gb/s       150
SATA 3Gb/s       300
SATA 6Gb/s   600
images/bullet2.gifSATA Express - For SSDs - Specification expected to be completed by end of 2011.
8Gb/s        
16Gb/s        
 

Transfer rates of the ATA Bus

Year Transfer Mode Transfer Rate
(Mb/sec)
1994 PIO Mode 2 32 =  4 MB
1995 PIO Mode 4 133.6 =  16.7 MB
1996

Ultra DMA 2

 ATA/16

133.6 =  16.7 MB
1997 Ultra DMA 3  ATA/33 166.4 =  20.8 MB
1999 Ultra DMA 4  ATA/66 532.8 =  66.6 MB
2000 Ultra DMA 5  ATA/100 800 =  100 MB
2001 Ultra DMA 6  ATA/133 1,064 =  133 MB
 
2002

SATA 1.5Gb/s

  150MB/s
2005

SATA 3Gb/s

  300MB/s
2009?

SATA 6Gb/s

  600MB/s
       
2012 SATA Express 8Gb/s    
  SATA Express 16Gb/s    

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Web Development, Gill Boyd & Team - Posted 12/14/2001
; Updated 08/11/2011