Advanced Technology Attachment Interface with Extensions

storage, standard (ATA-2, Enhanced Integrated Drive

Electronics, EIDE) A proposed (May 1996 or earlier?)

standard from X3T10 (document 948D rev 3) which extends

the Advanced Technology Attachment interface while

maintaining compatibility with current IBM PC BIOS

designs.

ATA-2 provides for faster data rates, 32-bit transactions and

(in some drives) DMA. Optional support for power saving

modes and removable devices is also in the standard.

ATA-2 was developed by Western Digital as "Enhanced

Integrated Drive Electronics" (EIDE) around 1994.

Marketroids call it "Fast ATA" or "Fast ATA-2".

ATA-2 was followed by ATA-3 and ATA-4 ("Ultra DMA").

(2000-10-07)