Fujitsu MBA3073 SERIES Technical Manual page 12

1.7 Bus Conditions ................................................................................................................................105
1.7.1 ATTENTION condition ................................................................................................................105
1.7.2 RESET condition...........................................................................................................................108
1.8 Bus Phase Sequence ........................................................................................................................109
1.8.1 Bus Phase Sequence with Information Units Disabled .................................................................109
1.8.2 Phase sequences with information unit enabled ............................................................................117
1.8.2.1 Phase sequences for physical reconnection or selection without using attention condition..........117
1.8.2.2 Phase sequences for selection using attention condition ...............................................................118
1.9 SPI information units.......................................................................................................................119
1.9.1 SPI information unit overview ......................................................................................................119
1.9.2 Information unit transfer logical operations ..................................................................................119
1.9.3 SPI information units.....................................................................................................................125
1.9.3.1 SPI command information unit .....................................................................................................125
1.9.3.2 SPI L_Q information unit..............................................................................................................128
1.9.3.3 SPI data information unit ..............................................................................................................131
1.9.3.4 SPI data stream information unit...................................................................................................131
1.9.3.5 SPI status information unit ............................................................................................................133
1.10 SCAM..............................................................................................................................................136
1.10.1 SCAM operations ..........................................................................................................................136
1.11 Ultra SCSI .......................................................................................................................................141
1.11.1 Outline...........................................................................................................................................141
1.11.2 Device connection .........................................................................................................................141
1.11.3 Electrical characteristics of SCSI parallel interface ......................................................................142
1.12 Low-Voltage Differential ................................................................................................................146
1.12.1 Ultra2-SCSI...................................................................................................................................146
1.12.2 Ultra-160 .......................................................................................................................................146
1.12.3 Ultra-320 .......................................................................................................................................146
1.12.4 LVD driver characteristics ............................................................................................................147
1.12.5 LVD receiver characteristics .........................................................................................................147
1.12.6 LVD capacitive loads ....................................................................................................................149
1.12.7 System level requirements for LVD SCSI drivers and receivers ..................................................150
1.13 SCSI bus fairness.............................................................................................................................151
CHAPTER 2 SCSI MESSAGE............................................................................................................153
2.1 Message System ..............................................................................................................................153
2.1.1 Message format .............................................................................................................................153
2.1.2 Message type .................................................................................................................................155
6 C141-C015