SCSI Description
Quantum DLT 8000 Tape System
3-21
3.5.5.1 Asynchronous Data Transfer
Drive to Initiator Transfer Procedure
1.
The drive drives the DB (0-15, P, & P1) signals to their desired values.
2.
Drive delays at least one deskew delay plus a cable skew delay.
3.
Drive asserts the REQ signal.
4.
Initiator reads the DB (0-15, P, & P1) signals.
5.
Initiator indicates its acceptance of the data by asserting the ACK signal.
6.
When ACK is true at the drive, drive can change or release the DB (0-15, P, & P1)
signals.
7.
Drive negates the REQ signal.
8.
Initiator negates the ACK signal.
9.
Drive can continue the transfer by driving the DB (0-15, P, & P1) signals and
asserting the REQ signal (Steps 1 – 3).
Initiator-to-Drive Transfer Procedure
1.
Drive asserts the REQ signal.
2.
Initiator drives the DB (0-15, P, & P1) signals to their desired values.
3.
Initiator delays at least one deskew delay plus a cable skew delay.
4.
Initiator asserts the ACK signal.
5.
When ACK is true at the drive, drive reads the DB (0-15, P, & P1) signals.
6.
Drive negates the REQ signal.
7.
Initiator can change or release the DB (0-15, P, & P1) signals.
8.
Initiator negates the ACK signal.
9.
Drive can continue the transfer by asserting the REQ signal (Step 1).
Summary of Contents for DLTtape DLT 8000
Page 1: ...DLTTM 8000 Tape System Product Manual Nov 10 2003 81 60118 06...
Page 5: ...USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT continued...
Page 6: ......
Page 26: ...Table of Contents xxiv Quantum DLT 8000 Tape System...
Page 36: ...About This Manual Quantum DLT 8000 Tape System xxxii...
Page 54: ...General Description and Specifications 1 18 Quantum DLT 8000 Tape System...
Page 102: ......
Page 372: ......
Page 376: ...Appendix A Definition of Vendor Unique Sense Data Information A 4 Quantum DLT 8000 Tape System...
Page 386: ...Appendix C Updating the Firmware C 6 Quantum DLT 8000 Tape System...
Page 396: ...Appendix E Visual Inspection Procedure for DLTtape Cartridges E 8 Quantum DLT 8000 Tape System...
Page 406: ...Appendix G DLT 7000 Emulation Feature G 8 Quantum DLT 8000 Tape System...
Page 407: ......