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參數(shù)資料
| 型號： | LSI53C770 |
| 英文描述： | LSI53C770 Ultra SCSI I/O Processor technical manual v2.1 3/01 |
| 中文描述： | LSI53C770超的SCSI I / O處理器技術手冊2.1 3 / 01 |
| 文件頁數(shù)： | 119/166頁 |
| 文件大?。?/td> | 1330K |
| 代理商： | LSI53C770 |
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SAF-TE Write Buffer Commands
4-21
4.3.2.1 Prepare for Operation
This bit is set by the host to indicate that a drive has been inserted in a
slot and is to be made ready for operation (that is, powered on). If the
Ready Device for Use option is selected in the configuration program, the
assigned MPIO pin will be asserted to turn slot power on.
These conditions apply if the Device Present option is chosen in the
configuration program:
If a device is present in the slot, and this bit is set, power will be
turned on (by the MPIO pin). The Prepared for Operation bit will be
set and the Ready for Insertion/Removal bit will be cleared in the
Read Device Slot Status command.
If a device is not present in the slot, and this bit is set, power will not
be turned on. The Ready for Insertion/Removal bit will be set and the
Prepared for Operation bit will be cleared in the Read Device Slot
Status command.
These conditions apply if the Device Present option is not chosen in the
configuration program:
Power is applied to the slot, the Prepared for Operation bit will be
set, and the Ready for Insertion/Removal bit will be cleared in the
Read Device Slot Status command.
4.3.2.2 Prepare for Insertion/Removal
This bit is set by the host to indicate that the slot should be made ready
for drive insertion or removal (that is, powered off). If the Prepare Device
for Insertion/Removal option is selected in the configuration program, the
assigned MPIO pin will be asserted to turn slot power off.
These conditions apply if the Device Present option is chosen in the
configuration program:
If a device is present in the slot, and this bit is set, power will be
turned off (by the MPIO pin). The Prepared for Operation bit will be
cleared and the Ready for Insertion/Removal bit will be set in the
Read Device Slot Status command.
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