Toshiba 4006GAH Manual Do Utilizador

 

 

Toshiba Corporation Digital Media Network Company 

 

Page 69 of 157 

© 2005, Copyright TOSHIBA Corporation All Rights Reserved 

 

COMMAND CODE 

1 0 0 1 0 0 0 1

REGISTER 

 

REGISTER SETTING 

NORMAL COMPLETION 

DR 

drive number 

no change 

CY  

no 

change 

HD 

total number of heads-1 

no change 

SN 

number of sector per track 

no change 

SC  

no 

change 

FT  

no 

change 

 
 

This command specifies the number of sectors per track and the number of heads per cylinder to set head 
switching point and cylinder increment point. Specified values affect Number of the current logical heads, 
Number of logical sectors per track, which can be read by Identify Device Command. 

On issuing this command, the content of CY register shall not be checked. This command will be terminated 
with ABORT error when it is issued on a invalid HD or SC register setting ( SC register=0 or the combination 
of HD and SC register exceeds the drive parameter.         

Any drive access command should accompany correct HD, SN register with heads and sectors within the 
number specified for this command.    Otherwise, it results in “ID not found” error.    If the number of heads 
and drives is within the specified number, command gives parameter to convert an address to access into 
Logical Block Address (LBA). 

  ID Not Found

error also occur when this LBA exceeds the total number of 

user addressable sectors.    The command does not affect LBA address mode.