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| BuildOrBuy News - ATAPI - Parallel ATA Specs |
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.
- 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)
- 260233 - Support for ATA 100 (Mode 5 ) in Windows 2000: Install SP2!
Serial
ATA - High Speed Serialized AT Attachment- Plextor
University - 80-Conductor ULTRA ATA Cable: 80 Wire / 40 Pin
- PCGuide
- Ref - IDE-ATA Configuration and Cabling
- DMA
Mode for ATA-ATAPI Devices in Windows XP:
- EZCD2
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.
| . | |||||||
| 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 | |||||
| Serial
ATA |
150 + | ||||||
| Serial
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 | ||||||
| SATA
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 | |||||||