Exabyte EXB-8205 Betriebsanleitung PDF herunterladen (Seite 329)

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Byte 09, Bit 7 - WBF (WRITE BUFFERs Follow)

The WBF bit specifies whether the new microcode is being sent using

one or more WRITE BUFFER commands, as follows:

0 – This is the only WRITE BUFFER command, or this is the last

WRITE BUFFER command in a sequence.

1–Thisisoneofseveral(butnotthelast)WRITEBUFFERcommands

in a sequence.

For each setting of the WBF bit, the Parameter List Length field (bytes

06 through 08) specifies the number of bytes to be transferred by the

current command.

Byte 09, Bit 6 - VU (Vendor Unique)

There is no vendor unique definition for this bit. This bit must be 0.

26.3 Exceptions and Error Conditions

The following exceptions and error conditions can occur with the

WRITE BUFFER command.

Aborting a WRITE BUFFER Command or Command

Sequence

To terminate a WRITE BUFFER command or an entire sequence of

WRITE BUFFER commands, send an Abort message to the CTS. This

will reset the CTS. Then, reissue the WRITE BUFFER command or the

entire sequence of WRITE BUFFER commands.

Microcode Not Valid

If the data loaded from the SCSI bus is not valid, the CTS returns

Check Condition status with the sense key set to Medium Error (3h).

The CTS will not attempt to load the new code. If this occurs, make

sure you have the correct file and try again or load new microcode

using a microcode update tape or the CTS Monitor program (refer to

the documentation for CTS Monitor).

May 1994 EXB-8205 and EXB-8505

(Standard and XL)

26-5

26 WRITE BUFFER (3Bh)

1 2 ... 324 325 326 327 328 329 330 331 332 333 334 ... 445 446

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