Seagate Ultra 160 User Manual
Page 176
162
Parallel SCSI Interface Product Manual, Rev. A
code value
reserved 131
aborted 4
completed 5
ended 6
linked 7
overlapped 143
SCSI-3 standards 2
single, example 140
third party 11
unlinked 11
untagged 149
command complete message 140, 141
command completion 131
command data 5
command data signal 29
Command Descriptor Block
SPI command information unit 119, 120
command descriptor block 5, 131, 135, 144, 150
10-byte commands 133
12-byte commands 134
16-byte commands 134
6-byte commands 133
control field 136
format 133
linked 7
typical variable length 135
command descriptor byte
control byte 11
command phase 75
command processing 142
command queue 138
command set 149
command structure
packetized 131
common access method
completed command 5
completed task 5
compliance with a standard 7
condition met 138
confirmation 5
confirmed protocol service 5
confirmed service reply 6
connectors 12
contingent allegiance 5
NACA=0 145
contingent allegiance condition 6, 143
control byte 142, 143
control field 136
control mode page 5, 143, 148
control/data
SCSI bus signal 15
CRC 82
CRC protection 1
CRC. see cyclic redundancy check
CRC-32 82
current task 5, 8
cyclic redundancy check 5, 7, 82
cylinder boundary 141
D
Data
SPI data information unit 125
SPI data stream information unit 126
data 6
data bus 29
data field 5
data group 5, 8
data group transfer 5
data group transfers 1, 38
data in phase 131, 136
Data Length
SPI L_Q information unit 122, 123
data length field 7
data out phase 131, 136
data transfer modes 37
DB(15—0) 17
DB(7—0) 17
DB(P_CRCA) signals 33
DB(P1) signals 33
default self-test 151
deferred error 149
delay 27
de-skewed data valid window 28
deskewing 74
destination device 5
device
device server 3, 5
device service
device service request 6
differential 5
differential drivers and receivers 5
differential sense
SCSI bus signal 15
DIFFSENS. see Differential Sense
disc media 140
disconnect 5
disconnect message 87, 141
Disconnect Privilege
Identify message format 87