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enter the SCAM Monitor state. Note that a drive make only one attempt to initiate SCAM protocol
after power-on.
While in the SCAM Monitor state, a drive shall monitor the SCSI bus for both SCAM selection and
normal SCSI selection. If the drive detects the initiation of SCAM protocol, it shall enter the ID Assign-
able state.
If a SELECTION phase for a drive's current ID is continuously valid for at least a SCAM unassigned
ID selection response delay, the drive shall respond to selection and assert the BSY signal. This response
to selection implicitly causes the drive to enter the ID Assigned state just as if an explicit ID assignment
had been received. The assigned ID is set to the current ID and the drive now functions as a SCAM
tolerant device.
A drive remains in the ID Assignment state as long as SCAM protocol is maintained until explicit
SCAM functions change its state.
If a drive is isolated and receives an Assign ID action code, the ID specified becomes both the current
and assigned ID. The drive releases all SCSI bus signals and enters the Assigned ID state.
If a drive receives a Configuration Process Complete function code or if SCAM protocol is terminated
(the C / D signal is false), it should release all SCSI bus signals and enter the ID Unassigned state.
A drive in the ID Unassigned state has not had any SCSI ID exiplicitly or implicitly assigned and shall
not respond to SCSI selections for its current ID regardless of the duration.
When the exception of a power-on or reset condition, only the detection of SCAM protocol initiation
shall cause the drive to leave the ID Unassigned state.
Once a drive has reached the ID Assigned state it functions as a SCAM tolerant device with the ID
assigned. That is, it shall respond to SCSI selection within a SCAM tolerant selection response time and
shall not recognize nor respond to SCAM selection.
A reset condition shall cause a drive to enter the Reset Delay state, in which it may perform local
initialization. The SCAM target shall leave this state and enter the SCAM monitor state within a SCAM
reset to SCAM selection time.
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O E M Spec. of DDRS-3xxxx
Содержание DDRS-39130 - Ultrastar 9.1 GB Hard Drive
Страница 2: ......
Страница 14: ...4 OEM Spec of DDRS 3xxxx...
Страница 15: ...Part 1 Functional Specification Copyright IBM Corp 1997 5...
Страница 16: ...6 OEM Spec of DDRS 3xxxx...
Страница 18: ...8 OEM Spec of DDRS 3xxxx...
Страница 26: ...16 OEM Spec of DDRS 3xxxx...
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Страница 30: ...20 OEM Spec of DDRS 3xxxx...
Страница 56: ...6 8 1 2 68 pin Model Figure 40 Outline of 68 pin Model 46 OEM Spec of DDRS 3xxxx...
Страница 57: ...6 8 1 3 80 pin Model Figure 41 Outline of 80 pin Model Specification 47...
Страница 59: ...6 8 3 Interface Connector 6 8 3 1 50 pin Model Figure 44 Interface Connector 50 pin Model Specification 49...
Страница 60: ...6 8 3 2 68 pin Model Figure 45 Interface Connector 68 pin Model 50 OEM Spec of DDRS 3xxxx...
Страница 61: ...6 8 3 3 80 pin Model Figure 46 Interface Connector 80 pin Model Specification 51...
Страница 62: ...6 8 4 Mounting Positions and Tappings Figure 47 Mounting Positions and Tappings 52 OEM Spec of DDRS 3xxxx...
Страница 70: ...60 OEM Spec of DDRS 3xxxx...
Страница 71: ...Part 2 SCSI Interface Specification Copyright IBM Corp 1997 61...
Страница 72: ...62 OEM Spec of DDRS 3xxxx...
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Страница 188: ...178 OEM Spec of DDRS 3xxxx...
Страница 208: ...198 OEM Spec of DDRS 3xxxx...
Страница 214: ...204 OEM Spec of DDRS 3xxxx...
Страница 224: ...214 OEM Spec of DDRS 3xxxx...
Страница 228: ...Part Number 00K0097 Published in Japan S00K 0097 03...