Exabyte EXB-8205 Instruções de Operação descarregar pdf (Página 186)

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Bytes 06 and 07 - Disconnect Time Limit

The only value supported by the CTS for the Disconnect Time Limit

field is 0. This value cannot be changed.

Note: The disconnect time limit is determined by the minimum time

it takes the CTS to disconnect from the SCSI bus and then

initiate a reselection sequence. The minimum disconnect time

for the CTS is 265 µsec. The initiator cannot change this field,

so the value returned for this field by the MODE SENSE

command is 0.

Bytes 08 and 09 - Connect Time Limit

The CTS does not recognize any values other than 0 for the Connect

Time Limit. It uses 0 as a default value, meaning that it will

disconnect from the bus after the amount of data defined by

Maximum Burst Size has been transferred.

Bytes 10 and 11 - Maximum Burst Size

The Maximum Burst Size defines the amount of data to be transferred

before disconnecting. The value is expressed in increments of 512

bytes. A value of 0 indicates that there is no limit to the amount of

data transferred before disconnecting. The CTS supports all values for

this field. The default value is 0, which means that disconnects and

reconnects are performed using the value specified by the Buffer Full

and Buffer Empty Ratios.

Note: If you set the Maximum Burst Size field to a non-zero value,

the CTS will automatically set the ND bit to 0 to allow

disconnects during the data transfer phase. That is, Maximum

Burst Size field has precedence over the ND bit. For more

information about the ND bit, see Section 10.14 on page 10-51.

10-30

EXB-8205 and EXB-8505

(Standard and XL)

510503

10 MODE SELECT (15h) and MODE SENSE (1Ah)

1 2 ... 181 182 183 184 185 186 187 188 189 190 191 ... 445 446

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Exabyte EXB-8205 Instruções de Operação Página 186

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