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Copyright © 2000 Toshiba corporation. All rights reserved.
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621 -
The Write Multiple command transfers one block ( the number of sectors is defined by the Set Multiple
command ) of data for each interrupt. The other commands transfer one sector of data for each interrupt.
If the drive detects an invalid parameter in register setting, the drive clears the BSY bit and sets the ERR bit
in the Status register and sets the ABRT bit in the Error register and asserts INTRQ to terminate the
command execution.
If an unrecoverable error occurs, the drive sets the DRQ bit and clears the BSY bit and sets the ERR bit and
stores the error status in Error register and report the address information of the sector with error to Sector
Number, Cylinder High, Cylinder Low and Device/Head registers and asserts INTRQ.
11.3 Non-data commands
Commands for this class are:
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CHECK POWER MODE
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EXECUTE DEVICE DIAGNOSTICS
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FLUSH CACHE
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IDLE
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IDLE IMMEDIATE
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INITIALIZE DEVICE PARAMETERS
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NOP
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READ VERIFY SECTOR(S)
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READ NATIVE MAX ADDRESS
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RECALIBRATE
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SEEK
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SET FEATURES
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SET MAX ADDRESS
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SET MULTIPLE MODE
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SLEEP
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STANDBY
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STANDBY IMMEDIATE
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SECURITY ERASE PREPARE
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SECURITY FREEZE LOCK
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SMART Enable/Disable Attribute Autosave
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SMART Save Attribute Values
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SMART Executive Off-line Immediate
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SMART Enable Operation
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SMART Disable Operation
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SMART Return Status
Non-data protocol:
a) The host writes any required command parameters to the Features, Sector Count, Sector Number, Cylinder
High, Cylinder Low and Device/Head registers.
b) The host writes the command code to the Command register.
c) The drive sets the BSY bit .
d) When the drive has finished processing a sector (or block) of data, it clears the BSY bit and asserts INTRQ.
e) In response to the INTRQ, the host reads the Status register.
f) The drive negates INTRQ in response to the Status register being read
See each command description for error report protocol.