Toshiba 3006GAL Manuale Utente

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360050398 
 
Toshiba Corporation Digital Media Network Company 
 
Page 136 of 157 
© 2005, Copyright TOSHIBA Corporation All Rights Reserved 
10.8.45.4.1 Error outputs 
 
Register 
7 6 5 4 3 2 1 0 
Error 
na na na na na 
ABRT
na na 
Sector Count 
na 
Sector Number 
Bit location low 
Cylinder Low 
Bit location high 
Cylinder High 
Word location 
Device/Head obs 
na 
obs 
DEV 
na 
Status BSY 
DRD
DF na DRQ
na
 
na ERR 
 
Error register -   
ABRT shall be set to one if the device does not support this command, if a DEVICE CONFIGURATION 
SET command has already modified the original settings as reported by a DEVICE 
CONFIGURATION IDENTIFY command, if DEVICE CONFIGURATION FREEZE LOCK is set, if 
any of the bit modification restrictions described in this section are violated, or if a Host 
Protected Area has been established by the execution of a SET MAX ADDRESS command. 
Sector Number – 
If the command was aborted because an attempt was made to modify a mode or feature that cannot be 
modified with the device in its current state, this register shall contain bits (7:0) set in the bit 
positions that correspond to the bits in the device configuration overlay data structure words 1, 
2, or 7 for each mode or feature that cannot be changed. If not, the value shall be 00h. 
Cylinder Low – 
If the command was aborted because an attempt was made to modify a mode or feature that cannot be 
modified with the device in its current state, this register shall contain bits (15:8) set in the bit 
positions that correspond to the bits in the device configuration overlay data structure words 1, 
2, or 7 for each mode or feature that cannot be changed. If not, the value shall be 00h. 
Cylinder High – 
If the command was aborted because an attempt was made to modify a bit that cannot be modified with 
the device in its current state, this register shall contain the offset of the first word encountered 
that cannot be changed. If an illegal maximum LBA address is encountered, the offset of word 3 
shall be entered. If a checksum error occurred, the value FFh shall be entered. A value of 00h 
indicates that the Data Structure Revision was invalid. 
Device register - 
DEV shall indicate the selected device. 
Status register - 
BSY shall be cleared to zero indicating command completion. 
DRDY shall be set to one. 
DF (Device Fault) shall be set to one if a device fault has occurred. 
DRQ shall be cleared to zero. 
ERR shall be set to one if an Error register bit is set to one. 
 
10.8.45.4.2 Description 
 
The DEVICE CONFIGURATION SET command allows a device manufacturer or a personal computer system 
manufacturer to reduce the set of optional commands, modes, or feature sets supported by a device as 
indicated by a DEVICE CONFIGURATION IDENTIFY command. The DEVICE CONFIGURATION SET 
command transfers an overlay that modifies some of the bits set in words 63, 82, 83, 84, and 88 of the 
IDENTIFY DEVICE or IDENTIFY PACKET DEVICE command response. When the bits in these words are 
cleared, the device shall no longer support the indicated command, mode, or feature set. If a bit is set in the 
overlay transmitted by the device that is not set in the overlay received from a DEVICE CONFIGURATION 
IDENTIFY command, no action is taken for that bit. Modifying the maximum LBA address of the device also 
modifies the address value returned by a READ NATIVE MAX ADDRESS or READ NATIVE MAX ADDRESS 
EXT command.