Seagate MEDALIST 1080SL Product Manual page 9

Medalist 1080sl SCSI Product Manual, August 1995
Figure 1. Typical startup current profile . . . . . . . . . . . . . . . . 6
Figure 2. Single-ended transmitter and receiver . . . . . . . . . . 16
Figure 3. ST51080N connectors . . . . . . . . . . . . . . . . . . 17
Figure 4. Options jumper block settings . . . . . . . . . . . . . . 20
Figure 5. ST51080N mounting dimensions . . . . . . . . . . . . . 25
Figure 6. Arbitration, selection (without ATN) and command . . . 109
Figure 7. Arbitration, selection (with ATN) and message out . . . 110
Figure 8. Identify message out to command . . . . . . . . . . . 111
Figure 9. Command descriptor block transfer . . . . . . . . . . 112
Figure 10. Command, status, command complete message and
bus free . . . . . . . . . . . . . . . . . . . . . . . . 113
Figure 11. Last command byte, disconnect message, bus free
and reselection . . . . . . . . . . . . . . . . . . . . 114
Figure 12. Arbitration, reselection and message in . . . . . . . . 115
Figure 13. Reselection, status, command complete and bus free
Figure 14. Last command byte to data in . . . . . . . . . . . . . 117
Figure 15. Last command byte to data out . . . . . . . . . . . . 118
Figure 16. Reselect identify message to data in . . . . . . . . . 119
Figure 17. Data in block transfer . . . . . . . . . . . . . . . . . 120
Figure 18. Data out block transfer . . . . . . . . . . . . . . . . 121
Figure 19. Last data byte, save pointer message and
disconnect message . . . . . . . . . . . . . . . . . 122
Figure 20. Data in, status, command complete message and
bus free . . . . . . . . . . . . . . . . . . . . . . . . 123
Figure 21. Synchronous timing . . . . . . . . . . . . . . . . . . 124
Figure 22. Synchronous write timing . . . . . . . . . . . . . . . 125
Figures
vii
116