Seagate Ultra 160, Ultra 320 manual List of Figures

List of Figures

Figure 1. SCSI client-server model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 2. Voltage and current definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 3. LVD Signaling sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 4. ST latching data vs. DT latching data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 5. ST synchronous transfer example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 6. DT synchronous transfer example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 7. Paced transfer example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 8. Example of a SCSI bus with paced transfers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 9. Use of P1 to establish data valid and data invalid states . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 10. Phase sequences for physical reconnection and selection using attention

condition with information unit transfers disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Figure 11. Phase sequences for selection without using attention condition with information

unit transfers disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Figure 12. Phase sequences for physical reconnection or selection without using attention

condition/ with information unit transfers enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Figure 13. Phase sequences for selection with attention condition/physical reconnection

and information unit transfers enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Figure 14. SPI information unit sequence during initial connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Figure 15. SPI information unit sequence during data type transfers . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Figure 16. SPI information unit sequence during data stream type transfers . . . . . . . . . . . . . . . . . . . . 117

Figure 17. SPI information unit sequence during status transfers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Figure 18. Single command example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Figure 19. Disconnect example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Figure 20. Protection code generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Parallel SCSI Interface Product Manual, Rev. A xi