Thursday 26 April 2018

Ata interface

What is the difference between ATA and SATA? Other terms such as IDE ( Integrated Drive Electronics) and EIDE (Enhanced IDE) have been used interchangeably with ATA. ATA is a 16-bit parallel interface , meaning that bits are transmitted simultaneously down the interface.


The earliest IDE drives were called hardcards and were nothing more than hard disks and controllers bolted together and plugged into a slot as a single unit. ATA-is a specification within the ATA family that denotes a particular type of ATA with corresponding data transfer speeds.

Advanced Technology Attachment ( ATA ) is an interface for internal computer storage components. SATA cable connected to a drive. Anyone who has peered into a computer is familiar with the flat, 40-wire parallel cables that connect the hard drive, CDROM and other devices to their controllers. ATA ATA technology is a technical specification group on IDE ( Integrated Device Electronics). Primarily, IDE is merely a hard disk interface technology aiming to integrate controller and disk body.


This guide includes reference schematics for the external circuitry required to implement the Parallel ATA (PATA) peripheral functions, as well as related comments and application notes. The ATA interface is basically a set of thin wires merged within a cable bus that are used to transfer data in and out of the disk drives. Initially, ATA supported parallel communication and was also called Parallel ATA (PATA).

PATA is sometimes just called IDE. Like the UART used to build the serial interface , the ATA bus makes use of registers to send data between the system and the attached devices. This is where we send words to in order to write them to a device and also where we read from when fetching data. The first of these registers, register zero is the data register. ATA (IDE, ATAPI, PATA) ATA is a common interface used in many personal computers before the emergence of SATA.


It is the least expensive of the interfaces. This document is intended as a guide for designing a custom system mainboard for Parallel ATA (PATA) interface. ATA -defined the original ATA interface , which was an integrated bus interface between disk drives and host systems based on the ISA (AT) bus. Also known as IDE, ATA is a disk drive implementation that integrates the controller on the disk drive itself. Those cases are described later in this section.


For ATA commands, this type of errors are indicated by ! ATA was originally a 16-bit parallel interface , meaning that bits are transmitted simultaneously down the interface cable. ATA (AT Attachment) is the most used interface for connecting disk drives to personal computers. ATA miniport drivers that implement this interface perform the function of a controller minidriver. Short for serial AT attachment, SATA1.


Gbps(approximately 1MBps) of performance to each drive within a disk array. SerialATA is capable of delivering 1.

The specification includes a description of the interface between system software and the host controller hardware. It is famous for applying serial mode in data transmission. In both the Idle and Standby modes, the drive accepts all commands and returns to the Active mode any time disc access is necessary. There may be a slight delay between the time the drive receives the command and the time drive activity begins.


Like all PCMCIA PC Cards, they feature the standard 68-pin parallel interface , although they only utilize of those pins. AT Attachment is just another name for the older IDE hard drive interface standard which was commonly referred to as ATA or Parallel ATA. The latest design uses an pin cable connector that is easily recognizable due to its wideness. Most of the signals and circuitry necessary for the interface are already present in the host system. The interface is easily implemented into the design of an ISA or EISA system with little or no extension required in the system software.


This interface has been around for quite a long time now.

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