Exabyte EXB-8205 Instrucciones de operaciones descargar pdf (Pagina 251)

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101

Bytes 04 through 07 - First Block Location

The First Block Location field indicates the block address associated

with the current logical block position (that is, the block address of

the next data block to be transferred between the initiator and the CTS

if a READ or WRITE command is issued). When using a LOCATE

command to search for this position, specify the value returned for

this field as the Block Address in bytes 03 through 06 of the LOCATE

CDB.

Note: If you issue a READ POSITION command immediately after

issuing a REWIND immediate command (Immed bit set to 1)

and you were writing data, the position returned by the CTS

may still reflect where the next write operation would have

occurred (not yet reset to 00 00 00 00).

Bytes 08 through 11 - Last Block Location

The Last Block Location field is not valid for the CTS. The value

returned for this field is 0.

Bytes 13 through 15 - Number of Blocks in Buffer

The Number of Blocks in Buffer field is not valid for the CTS. The

value returned for this field is 0.

Bytes 16 through 19 - Number of Bytes in Buffer

The Number of Bytes in Buffer field is not valid for the CTS. The

value returned for this field is 0.

May 1994 EXB-8205 and EXB-8505

(Standard and XL)

15-5

15 READ POSITION (34h)

1 2 ... 246 247 248 249 250 251 252 253 254 255 256 ... 445 446

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Exabyte EXB-8205 Instrucciones de operaciones Pagina 251

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