Seagate Ultra 160, Ultra 320 manual Multidrop 7 multimode

multidrop 7 multimode

SCSI bus signal 15 multimode I/O circuits 15 multimode single-ended7 multiple initiator 14 multiple initiators 3 multiple target 14

N

NACA. see Normal Auto Contingent Allegiance negated edge 6

negotiate 40 negotiation 40

negotiation message sequences 49 nexus 6, 8

no operation message 91 non-recoverable error 9 non-volatile 7

normal auto contingent allegiance 137 normal auto contingent allegiance bit 143

O

object 6, 8

objects, cooperating 9 obsolete 11

odd parity 8 one-byte message 84 operating definition 149 operation

I/O 7

operation code 131, 132 option 11

implementation 6 protocol 8

option actualization 6 ordered message 104

ordered task queue tag message 148 output

SCSI bus signal 15 overlapped command 143

overlapped commands attempted 143, 150

P

P_CRCA signals 34 P1 16

paced 37

paced DT data transfers 68

paced transfer 1, 8, 14, 37, 44, 68 on a SCSI bus 36

pacing 8 pacing transfer

at end of training pattern 72 with no training pattern 72

packetized 8

command structure 131 Packetized Failures

SPI status information unit 127, 128 Packetized Failures List Length

SPI status information unit 127 Packetized Failures Valid

SPI status information unit 127, 128 pad field 8

pad information 8

parallel protocol request 8

parallel protocol request message 92 parallel transfer 6

parameter invalid 132

low-level hardware 149 parameter list length 136 parameter value

rounding 149 parity 158

odd 8 parity bit 8 partitions 2 PCOMP_EN 47 pCRC byte 5 pCRC field 8, 38 pCRC information 8 pCRC protection 8

pCRC Receive hold time 28 pCRC Receive setup time 28 pCRC Transmit hold time 28 pCRC Transmit setup time 28 peer entities 8 peer-to-peer protocol service 8 pending task 8

Persistent Reserve Out command 143 physical connect 6

physical disconnection delay 29 physical interconnect 8 physical interface

characteristics 12 physical reconnect 8 physical reconnection 8 pointer 109

port 8

power on to selection 29 PPR 40 precompensation 47 preempt and clear action 143 procedure 8

SCSI 9 protection code 154, 157 protection code checking

disabling 158 enabling 158

Parallel SCSI Interface Product Manual, Rev. A 165