Quantum FIREBALL PLUS AS 10.2 User Manual

Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT 6-1
Chapter 6
Chapter 6Chapter 6
Chapter 6
ATA BUS INTERFACE AND ATA COMMANDS
ATA BUS INTERFACE AND ATA COMMANDSATA BUS INTERFACE AND ATA COMMANDS
ATA BUS INTERFACE AND ATA COMMANDS
This chapter describes the interface between Quantum Fireball Plus AS 10.2/20.5/
30.0/40.0/60.0 GB AT hard disk drives and the ATA bus. The commands that are
issued from the host to control the drive are listed, as well as the electrical and
mechanical characteristics of the interface.
6.1
6.16.1
6.1 INTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk drives use
the standard IBM PC ATA bus interface, and are compatible with systems that
provide an ATA interface connector on the motherboard. It may also be used with
a third-party adapter board in systems that do not have a built-in ATA adapter. The
adapter board plugs into a standard 16-bit expansion slot in an AT-compatible
computer. A cable connects the drive to the adapter board.
6.2
6.26.2
6.2 SOFTWARE INTERFACE
SOFTWARE INTERFACESOFTWARE INTERFACE
SOFTWARE INTERFACE
The Quantum Fireball Plus AS drives are controlled by the Basic Input/Output
System (BIOS) program residing in an IBM PC AT, or IBM compatible PC. The
BIOS communicates directly with the drive’s built-in controller. It issues
commands to the drive and receives status information from the drive.
6.3
6.36.3
6.3 MECHANICAL DESCRIPTION
MECHANICAL DESCRIPTIONMECHANICAL DESCRIPTION
MECHANICAL DESCRIPTION
6.3.1
6.3.16.3.1
6.3.1 Drive Cable and Connector
Drive Cable and ConnectorDrive Cable and Connector
Drive Cable and Connector
The hard disk drive connects to the host computer by means of a cable. This cable
has a 40-pin connector that plugs into the drive, and a 40-pin connector that plugs
into the host computer. At the host end, the cable plugs into either an adapter board
residing in a host expansion slot, or an on-board ATA adapter.
6.4
6.46.4
6.4 ELECTRICAL INTERFACE
ELECTRICAL INTERFACEELECTRICAL INTERFACE
ELECTRICAL INTERFACE
6.4.1
6.4.16.4.1
6.4.1 ATA Bus Interface
ATA Bus InterfaceATA Bus Interface
ATA Bus Interface
A 40-pin ATA interface connector on the motherboard or an adapter board provides
an interface between the drive and a host that uses an IBM PC AT bus. The ATA
interface contains bus drivers and receivers compatible with the standard AT bus.
The AT-bus interface signals D8–D15, INTRQ, and IOCS16– require the ATA
adapter board to have an extended I/O-bus connector.
The ATA interface buffers data and controls signals between the drive and the AT
bus of the host system, and decodes addresses on the host address bus. The
Command Block Registers on the drive accept commands from the host system
BIOS.

Quantum FIREBALL PLUS AS 10.2 Specifications

General

Brand	Quantum
Model	FIREBALL PLUS AS 10.2
Category	Storage
Language	English