Motorola MVME2700 Series Manuel d'utilisateur télécharger pdf (Page 486)

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F-6 Computer Group Literature Center Web Site

Disk Status Codes

ATA/ATAPI Firmware Status Codes

Note The marketing terms IDE and EIDE are often used when

describing the ATA and ATAPI interface and protocol. The

underlying technologies behind these are defined by the ATA and

ATAPI standards proposed by the Accredited Standards

Committee (ASC) and the Small Form Factor Committee (SFFC)

respectively. ATA falls under the X3T10 umbrella of the ASC,

while the proposed ATAPI specification is described by the SFF-

8020 document set forth by the SFFC. SFFC has also proposed a

number of other ATA-related documents. This PPCBug user’s

manual uses either the IDE/EIDE or the ATA/ATAPI

nomenclature, as seems appropriate.

The debugger returns a single 16-bit word for an error code unless

additional status is available. For ATA commands, the additional status

comprises one 16-bit word; for ATAPI, up to two 16-bit works are

returned.

The first 16-bit word contains the ATA/ATAPI command and the contents

of the error register. In response to ATAPI commands, it also contains the

sense key code. For non-zero sense key values, an additional 16-bit word

is returned, concatenated to the second 16-bit word. This third status word

indicates the ASC and ASQ values returned by the device in response to

an ATAPI packet command.

Below is a list of controller dependent error codes and a short description

of each for the IDE and EIDE controllers. For definition of the error

documents:

ATA - AT Attachment Interface with Extensions (ATA-2)

-X3T10-948D

ATAPI - ATA Packet Interface for CD-ROMs

- SFF-8020i.

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Motorola MVME2700 Series Manuel d'utilisateur Page 486

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